A Broadband Imaging X-ray All-sky Survey | April 28, 1999 | German Aerospace Center | Kosmos-3M |
Aalto-1 | June 23, 2017 | Aalto University | Polar Satellite Launch Vehicle-XL |
Aalto-2 | April 18, 2017 | Aalto University | Atlas V 401 |
| AAU CubeSat | June 30, 2003 | — | Rokot |
| AAUSAT 4 | April 25, 2016 | — | Soyuz-2.1a |
| AAUSAT 5 | August 19, 2015 | — | H-IIB |
AAUSAT-II | April 28, 2008 | — | Polar Satellite Launch Vehicle |
AAUSAT3 | February 25, 2013 | Aalborg University | Polar Satellite Launch Vehicle |
| ABS-1A | January 14, 1996 | — | Delta II |
| ABS-2 | February 6, 2014 | Agility Beyond Space | Ariane 5 ECA |
| ABS-2A | June 15, 2016 | Agility Beyond Space, Agility Beyond Space | Falcon 9 Full Thrust |
ABS-3 | August 19, 1997 | Mabuhay Satellite Corporation | Long March 3B |
ABS-3A | March 2, 2015 | Agility Beyond Space | Falcon 9 v1.1 |
| ABS-6 | September 26, 1999 | Agility Beyond Space | Proton-K |
| ABS-7 | September 4, 1999 | Agility Beyond Space | Ariane 42P |
| Aces-1 | June 12, 2023 | Defense Advanced Research Projects Agency | Falcon 9 Block 5 |
| Aces-2 | June 12, 2023 | Defense Advanced Research Projects Agency | Falcon 9 Block 5 |
| Aces-3 | June 12, 2023 | Defense Advanced Research Projects Agency | Falcon 9 Block 5 |
| Aces-4 | June 12, 2023 | Defense Advanced Research Projects Agency | Falcon 9 Block 5 |
ACRIMSAT | December 21, 1999 | Jet Propulsion Laboratory, Columbia University | Minotaur-C |
ADEOS I | August 17, 1996 | National Space Development Agency | H-II |
ADEOS II | December 14, 2002 | National Space Development Agency | H-IIA |
Aditya-L1 | September 2, 2023 | Indian Space Research Organisation | Polar Satellite Launch Vehicle-XL |
ADM-Aeolus | August 22, 2018 | European Space Operations Centre, European Space Research and Technology Centre, ESA Centre for Earth Observation | Vega |
| Advanced Avionics Module | April 23, 2007 | — | Polar Satellite Launch Vehicle |
Advanced Communications Technology Satellite | September 12, 1993 | National Aeronautics and Space Administration | Space Shuttle |
Advanced Composite Solar Sail System | April 23, 2024 | Ames Research Center | Electron |
Advanced Composition Explorer | August 25, 1997 | — | Delta II |
Advanced Satellite for Cosmology and Astrophysics | February 20, 1993 | — | M-3S2 |
| Advanced Space-based Solar Observatory | October 8, 2022 | Chinese Academy of Sciences | Long March 2D |
Advanced Telescope for High-Energy Astrophysics | 2035 | European Space Agency | Ariane 6 |
| AENEAS | September 13, 2012 | — | Atlas V 401 |
AERCam Sprint | November 19, 1997 | National Aeronautics and Space Administration | Space Shuttle |
| AeroCube 3 | May 19, 2009 | The Aerospace Corporation | Minotaur I |
| AEROCUBE 7B | November 12, 2017 | — | Antares |
| AEROCUBE 7C | November 12, 2017 | — | Antares |
Aeronomy of Ice in the Mesosphere | April 25, 2007 | Laboratory for Atmospheric and Space Physics | Pegasus |
AEROS A | December 16, 1972 | — | Scout D-1 |
AEROS B | July 16, 1974 | — | Scout D-1 |
| AEROS MH-1 | March 4, 2024 | — | Falcon 9 Block 5 |
| AESP-14 | January 10, 2015 | — | Falcon 9 v1.1 |
| AFP-675 | July 19, 1990 | — | — |
| AFP-888 | July 19, 1990 | — | — |
| AfriStar | October 28, 1998 | — | Ariane 44L |
AggieSat2 | July 15, 2009 | Texas A&M University | Space Shuttle |
| AggieSat4 | December 6, 2015 | Texas A&M University | Atlas V 401 |
| Agila-1 | March 20, 1987 | Mabuhay Satellite Corporation, PT Pasifik Satelit Nusantara | Delta 3000 |
| Agustina | March 30, 2026 | LusoSpace | Falcon 9 Block 5 |
AISat | June 30, 2014 | German Aerospace Center | Polar Satellite Launch Vehicle |
| AISAT-1 | April 1, 2019 | — | Polar Satellite Launch Vehicle-QL |
| AISSAT 2 | July 8, 2014 | Space Norway | Soyuz-2.1b |
| AISSat-1 | July 12, 2010 | Space Norway | Polar Satellite Launch Vehicle |
| Aist 1 | December 28, 2013 | — | Soyuz-2.1v |
| AIST 2 | April 19, 2013 | — | Soyuz-2.1a |
| AIST 2D | April 28, 2016 | — | Soyuz-2.1a |
Akari | February 21, 2006 | Japan Aerospace Exploration Agency | M-V |
Akatsuki | May 20, 2010 | Japan Aerospace Exploration Agency | H-IIA |
| Akebono | February 21, 1989 | Institute of Space and Astronautical Science | M-3S2 |
| Al Farabi-1 | February 15, 2017 | — | Polar Satellite Launch Vehicle-XL |
| Al Yah 3 | January 25, 2018 | Al Yah Satellite Communications | Ariane 5 ECA |
| Al-Farabi-2 | December 3, 2018 | — | Falcon 9 |
Albert Einstein ATV | June 5, 2013 | European Space Agency | Ariane 5ES |
| Alcomsat-1 | December 10, 2017 | — | Long March 3B |
Alexander (satellite) | April 21, 2013 | National Aeronautics and Space Administration | Antares |
| ALMASat-1 | February 13, 2012 | University of Bologna | Vega |
Almaz 1A | March 31, 1991 | — | Proton-K |
ALOS | January 24, 2006 | Japan Aerospace Exploration Agency | H-IIA |
ALOS-2 | May 24, 2014 | Japan Aerospace Exploration Agency | H-IIA |
| ALOS-3 | March 7, 2023 | Japan Aerospace Exploration Agency | H3 Launch Vehicle |
| ALOS-4 | July 1, 2024 | Japan Aerospace Exploration Agency | H3 Launch Vehicle |
Alouette 1 | September 29, 1962 | Communications Research Centre Canada | Thor-Agena B |
| Alouette 2 | November 29, 1965 | Communications Research Centre Canada | Thor-Agena B |
| AlSat-1 | November 28, 2002 | Algerian Space Agency | Kosmos-3M |
| AlSat-1B | September 26, 2016 | Algerian Space Agency | Polar Satellite Launch Vehicle |
AlSat-1N | September 26, 2016 | Algerian Space Agency, UK Space Agency | Polar Satellite Launch Vehicle |
| AlSat-2A | July 12, 2010 | Algerian Space Agency | Polar Satellite Launch Vehicle |
| AlSat-2B | September 26, 2016 | Algerian Space Agency | Polar Satellite Launch Vehicle |
| Alsat-3A | January 15, 2026 | Algerian Space Agency | Long March 2C |
| AlSat-3B | January 31, 2026 | Algerian Space Agency | Long March 2C |
| ALTIUS | 2027 | European Space Agency | Vega C |
| Amazonas 1 | August 4, 2004 | — | Proton-M |
| Amazonas 2 | October 1, 2009 | Hispasat | Ariane 5 ECA |
| Amazonas 3 | February 7, 2013 | Hispasat | Ariane 5 ECA |
| Amazonas 5 | September 11, 2017 | Hispasat | Proton-M |
| Amazonas Nexus | February 7, 2023 | Hispasat | Falcon 9 Block 5 |
Amazônia 1 | February 28, 2021 | National Institute for Space Research | Polar Satellite Launch Vehicle-DL |
| AMC 2 | January 30, 1997 | — | Ariane 44L |
| AMC-1 | September 8, 1996 | SES Americom | Atlas II |
| AMC-10 | February 5, 2004 | — | Atlas II |
| AMC-14 | March 14, 2008 | SES Americom | Proton-M |
| AMC-15 | October 14, 2004 | — | Proton-M |
| AMC-16 | December 17, 2004 | — | Atlas V 521 |
| AMC-18 | December 8, 2006 | SES Americom | Ariane 5 ECA |
| AMC-21 | August 14, 2008 | — | Ariane 5 ECA |
| AMC-3 | September 4, 1997 | SES Americom | Atlas II |
| AMC-4 | November 13, 1999 | SES Americom | Ariane 44LP |
AMC-5 | October 28, 1998 | SES Americom | Ariane 44L |
| AMC-6 | October 21, 2000 | SES Americom | Proton-K |
| AMC-7 | September 14, 2000 | SES S.A. | Ariane 5G |
| AMC-8 | December 20, 2000 | SES Americom | Ariane 5G |
| AMC-9 | June 6, 2003 | SES S.A. | Proton-K |
| AMOS-17 | August 6, 2019 | Spacecom | Falcon 9 Block 5 |
| AMOS-2 | December 27, 2003 | Spacecom | Soyuz-FG |
| AMOS-3 | April 28, 2008 | Spacecom | Zenit-3SLB |
| AMOS-4 | August 31, 2013 | Spacecom | Zenit-3SLB |
AMOS-5 | December 11, 2011 | Spacecom | Proton-M |
| AMOS-6 | September 3, 2016 | Spacecom | Falcon 9 Full Thrust |
AMSAT Echo | June 29, 2004 | Radio Amateur Satellite Corporation-North America | Dnepr |
AMSAT-OSCAR 10 | June 16, 1983 | — | Ariane 1 |
| AMSAT-OSCAR 16 | January 22, 1990 | AMSAT | Ariane 40 |
| AMSAT-OSCAR 6 | October 15, 1972 | — | Delta 0100 |
AMSAT-OSCAR 7 | November 15, 1974 | AMSAT | Delta 2000 |
| AMSC-1 | April 7, 1995 | — | Atlas II |
| ANASIS-II | July 20, 2020 | — | Falcon 9 |
ANDE-Castor | July 15, 2009 | Space Test Program, Lyndon B. Johnson Space Center | Space Shuttle |
ANDE-FCal | December 10, 2006 | Lyndon B. Johnson Space Center, Space Test Program | Space Shuttle |
ANDE-MAA | December 10, 2006 | Lyndon B. Johnson Space Center, Space Test Program | Space Shuttle |
ANDE-Pollux | July 15, 2009 | Space Test Program, Lyndon B. Johnson Space Center | Space Shuttle |
| ANDESITE | June 13, 2020 | — | Electron |
| Anduril-216 | July 7, 2026 | — | Falcon 9 Block 5 |
| ANGELS | July 28, 2014 | Air Force Research Laboratory, 3d Space Experimentation Squadron | Delta IV Medium+(4,2) |
| AngoSat 1 | December 26, 2017 | AngoSat | Zenit-3F |
| AngoSat 2 | October 12, 2022 | AngoSat | Proton-M |
Anik A1 | November 10, 1972 | — | Delta 1000 |
Anik A2 | April 20, 1973 | — | Delta 1000 |
| Anik A3 | May 7, 1975 | — | Delta 2000 |
| Anik B1 | December 16, 1978 | — | Delta 3000 |
| Anik D1 | August 26, 1982 | — | Delta 3000 |
| Anik D2 | November 8, 1984 | Telesat | Space Shuttle |
| Anik E1 | September 26, 1991 | — | Ariane 44P |
| Anik E2 | April 4, 1991 | — | Ariane 44P |
| Anik F1 | November 21, 2000 | — | Ariane 44L |
| Anik F1R | September 8, 2005 | — | Proton-M |
| Anik F2 | July 18, 2004 | — | Ariane 5G+ |
| Anik F3 | April 9, 2007 | — | Proton-M |
| Anik F4 | May 19, 2004 | — | Atlas II |
| Anik G1 | April 15, 2013 | — | Proton-M |
ANNA 1B | October 31, 1962 | — | Thor-Ablestar |
Antares | January 31, 1971 | National Aeronautics and Space Administration | Saturn V |
AntelSat | June 19, 2014 | ANTEL, Facultad de Ingeniería (Universidad de la República) | Dnepr |
| ANUSAT | April 20, 2009 | Anna University | Polar Satellite Launch Vehicle |
| AO-40 | November 16, 2000 | — | Ariane 5G |
APEX | August 3, 1994 | Space Test Program | Pegasus |
| APEX-MAIN | December 18, 1991 | — | Tsyklon-3 |
Apollo 10 Command and Service Module | May 18, 1969 | National Aeronautics and Space Administration | Saturn V |
| Apollo 10 SIVB | — | — | — |
Apollo 11 Command and Service Module | July 16, 1969 | National Aeronautics and Space Administration | Saturn V |
| Apollo 11 SIVB | — | — | — |
Apollo 12 Command and Service Module | November 14, 1969 | National Aeronautics and Space Administration | Saturn V |
| Apollo 12 SIVB | — | — | — |
Apollo 13 Command and Service Module | April 11, 1970 | National Aeronautics and Space Administration | Saturn V |
| Apollo 13 SIVB | — | — | — |
Apollo 14 Command and Service Module | January 31, 1971 | National Aeronautics and Space Administration | Saturn V |
| Apollo 14 SIVB | — | — | — |
| Apollo 15 Command and Service Module | July 26, 1971 | National Aeronautics and Space Administration | Saturn V |
| Apollo 15 SIVB | — | — | — |
| Apollo 15 Subsatellite | July 26, 1971 | — | Saturn V |
Apollo 16 Command and Service Module | April 16, 1972 | National Aeronautics and Space Administration | Saturn V |
| Apollo 16 SIVB | — | — | — |
| Apollo 16 Subsatellite | April 16, 1972 | — | Saturn V |
Apollo 17 Command and Service Module | December 7, 1972 | National Aeronautics and Space Administration | Saturn V |
Apollo 6 Lunar Module test article | April 4, 1968 | National Aeronautics and Space Administration | Saturn V |
| Apollo 8 SIVB | — | — | — |
Apollo 9 Command and Service Module | March 3, 1969 | National Aeronautics and Space Administration | Saturn V |
| Apollo 9 SIVB | — | — | — |
| Apollo Lunar Series | — | — | — |
Applications Technology Satellite 1 | December 7, 1966 | National Aeronautics and Space Administration | Atlas SLV-3 Agena-D |
Applications Technology Satellite 2 | April 6, 1967 | National Aeronautics and Space Administration | Atlas SLV-3 Agena-D |
Applications Technology Satellite 3 | November 5, 1967 | National Aeronautics and Space Administration | Atlas SLV-3 Agena-D |
Applications Technology Satellite 4 | August 10, 1968 | National Aeronautics and Space Administration | Atlas SLV-3C Centaur-D |
Applications Technology Satellite 5 | August 12, 1969 | National Aeronautics and Space Administration | Atlas SLV-3C Centaur-D |
Applications Technology Satellite 6 | May 30, 1974 | National Aeronautics and Space Administration | Titan IIIC |
| AprizeSat 10 | June 19, 2014 | — | Dnepr |
| AprizeSat 6 | August 17, 2011 | — | Dnepr |
| AprizeSat 7 | November 21, 2013 | — | Dnepr |
| AprizeSat 8 | November 21, 2013 | — | Dnepr |
| AprizeSat 9 | June 19, 2014 | — | Dnepr |
| Apstar 1A | July 3, 1996 | — | Long March 3 |
APStar 6 | April 12, 2005 | APT Satellite Holdings | Long March 3B |
Apstar 6C | May 3, 2018 | — | Long March 3B |
| Apstar 6D | July 9, 2020 | — | Long March 3B |
| Apstar 6E | January 12, 2023 | — | Long March 2C |
| APStar 7 | March 31, 2012 | APT Satellite Holdings | Long March 3B |
| APSTAR 9 | October 16, 2015 | — | Long March 3B |
| Apstar A1 | July 21, 1994 | — | Long March 3 |
| Apstar II | January 25, 1995 | — | Long March 2E |
| AQT-D | September 24, 2019 | — | H-IIB |
Aqua | May 4, 2002 | National Aeronautics and Space Administration | Delta II |
Aquarius | April 11, 1970 | National Aeronautics and Space Administration | Saturn V |
| Arabsat 2A | July 9, 1996 | Arab Satellite Communications Organization | Ariane 44L |
| Arabsat 2B | November 13, 1996 | Arab Satellite Communications Organization | Ariane 44L |
| Arabsat 5C | September 21, 2011 | — | Ariane 5 ECA |
| Arabsat-1A | February 8, 1985 | Arab Satellite Communications Organization | Ariane 3 |
Arabsat-1B | June 17, 1985 | Arab Satellite Communications Organization | Space Shuttle |
| Arabsat-5A | June 26, 2010 | Arab Satellite Communications Organization | Ariane 5 ECA |
| Arabsat-6A | April 11, 2019 | King Abdulaziz City for Science and Technology | Falcon Heavy |
Arase | December 20, 2016 | Japan Aerospace Exploration Agency | Epsilon |
| Arctic Weather Satellite | August 16, 2024 | European Space Research and Technology Centre, EUMETSAT, Kongsberg Satellite Services | Falcon 9 Block 5 |
| Arcturus | May 1, 2023 | Astranis | Falcon Heavy |
ArduSat 1 | August 3, 2013 | — | H-IIB |
ARDUSAT X | August 3, 2013 | — | H-IIB |
ArgoMoon | November 16, 2022 | Argotec | Space Launch System Block 1 |
ARGOS | February 23, 1999 | — | Delta II |
| Ariane 1 rocket body debris | February 22, 1986 | — | Ariane 1 |
| Ariane Passenger Payload Experiment | June 19, 1981 | Indian Space Research Organisation | Ariane 1 |
| Ariane V2 | November 1, 1979 | — | Ariane |
| ARICA-2 | April 23, 2026 | Aoyama Gakuin University | Electron |
ARIEL | 2031 | — | — |
Ariel 1 | April 26, 1962 | National Aeronautics and Space Administration, Science and Engineering Research Council | Thor-Delta |
Ariel 2 | March 27, 1964 | National Aeronautics and Space Administration, Science and Engineering Research Council | Scout X-3 |
Ariel 3 | May 5, 1967 | Science and Engineering Research Council, National Aeronautics and Space Administration | Scout A |
Ariel 4 | December 11, 1971 | Science and Engineering Research Council, National Aeronautics and Space Administration | Scout B |
Ariel 5 | October 15, 1974 | National Aeronautics and Space Administration, Science and Engineering Research Council | Scout B |
Ariel 6 | June 2, 1979 | Science and Engineering Research Council, National Aeronautics and Space Administration | Scout D-1 |
| Arktika-M 1 | February 28, 2021 | — | Soyuz-2.1b |
| Arkyd-3 | October 28, 2014 | Planetary Resources | Antares |
| Arkyd-3 Reflight | April 14, 2015 | Planetary Resources | Falcon 9 v1.1 |
| Arkyd-6A | January 12, 2018 | Planetary Resources | Polar Satellite Launch Vehicle-XL |
| ARRAKIHS | December 2030 | European Space Agency | Vega C |
Array of Low-Energy X-ray Imaging Sensors | April 25, 1993 | Los Alamos National Laboratory | Pegasus |
ARSAT-1 | October 16, 2014 | ARSAT | Ariane 5 ECA |
ARSAT-2 | September 30, 2015 | ARSAT | Ariane 5 ECA |
Arsene-OSCAR 24 | May 12, 1993 | — | Ariane 42L |
Artemis | July 12, 2001 | European Space Agency | Ariane 5G |
Aryabhata | April 19, 1975 | Indian Space Research Organisation | Kosmos-3M |
| ASBM 1 | August 12, 2024 | Space Norway | Falcon 9 Block 5 |
| ASBM 2 | August 12, 2024 | Space Norway | Falcon 9 Block 5 |
ASC 1 | August 27, 1985 | ConTel | Space Shuttle |
| ASC 2 | April 13, 1991 | ConTel | Delta II |
| Asgardia-1 | November 12, 2017 | Asgardia | Antares |
| AsiaSat 1 | April 7, 1990 | AsiaSat | Long March 3 |
| AsiaSat 2 | November 28, 1995 | AsiaSat | Long March 2E |
| AsiaSat 3S | March 21, 1999 | — | Proton-K |
| AsiaSat 4 | April 12, 2003 | — | Atlas IIIB |
| AsiaSat 5 | August 11, 2009 | AsiaSat | Proton-M |
AsiaSat 6 | September 7, 2014 | AsiaSat | Falcon 9 v1.1 |
| AsiaSat 7 | November 25, 2011 | AsiaSat | Proton-M |
| AsiaSat 8 | August 5, 2014 | AsiaSat | Falcon 9 v1.1 |
| AsiaSat 9 | September 28, 2017 | AsiaSat | Proton-M |
| AsiaStar | March 21, 2000 | 1worldspace | Ariane 5G |
| ASNARO 1 | November 6, 2014 | — | Dnepr |
| ASNARO 2 | January 17, 2018 | — | Epsilon |
| ASRTU-1 | November 4, 2024 | — | Soyuz-2.1b |
ASTERIA | August 14, 2017 | National Aeronautics and Space Administration | Falcon 9 Full Thrust |
| ASTERISC | November 9, 2021 | Chiba Institute of Technology | Epsilon |
| ASTEX | October 17, 1971 | Space Test Program | Thorad-Agena D |
| Astra 1A | December 11, 1988 | SES S.A. | Ariane 44LP |
| Astra 1B | March 2, 1991 | SES S.A. | Ariane 44LP |
| Astra 1C | May 12, 1993 | — | Ariane 42L |
| Astra 1D | November 1, 1994 | SES S.A. | Ariane 42P |
| Astra 1E | October 19, 1995 | — | Ariane 42L |
| Astra 1F | April 8, 1996 | — | Proton-K |
| Astra 1G | December 2, 1997 | — | Proton-K |
| Astra 1H | June 18, 1999 | — | Proton-K |
| Astra 1K | November 25, 2002 | SES Astra | Proton-K |
| Astra 1KR | April 20, 2006 | — | Atlas V 411 |
| Astra 1L | May 4, 2007 | SES S.A. | Ariane 5 ECA |
| Astra 1M | November 5, 2008 | SES S.A. | Proton-M |
| Astra 1N | August 6, 2011 | — | Ariane 5 ECA |
| Astra 1P | June 20, 2024 | SES S.A. | Falcon 9 Block 5 |
| Astra 2A | August 30, 1998 | — | Proton-K |
| Astra 2B | September 14, 2000 | — | Ariane 5G |
| Astra 2C | June 16, 2001 | SES Astra | Proton-K |
| Astra 2D | December 20, 2000 | SES Astra | Ariane 5G |
| Astra 2E | September 29, 2013 | SES S.A. | Proton-M |
| Astra 2F | September 28, 2012 | SES S.A. | Ariane 5 ECA |
| Astra 2G | December 27, 2014 | SES S.A. | Proton-M |
| Astra 3A | March 29, 2002 | — | Ariane 44L |
| Astra 3B | May 21, 2010 | — | Ariane 5 ECA |
| Astra 3C | March 22, 2014 | SES S.A. | Ariane 5 ECA |
| Astra 4A | November 17, 2007 | SES Sirius | Proton-M |
| Astra 5A | November 12, 1997 | SES Sirius | Ariane 44L |
| Astrid-1 | January 24, 1995 | Swedish Space Corporation | Kosmos-3M |
| Astrid-2 | December 10, 1998 | Swedish Space Corporation | Kosmos-3M |
| ASTRO | March 9, 2007 | Air Force Research Laboratory | Atlas V 401 |
ASTRO-E | February 10, 2000 | Institute of Space and Astronautical Science, National Aeronautics and Space Administration | M-V |
Astro-rivelatore Gamma a Immagini Leggero | April 23, 2007 | Italian Space Agency | Polar Satellite Launch Vehicle-CA |
| AstroBio CubeSat | July 13, 2022 | Sapienza University of Rome | Vega C |
| Astromag FF | January 1, 2005 | — | — |
Astron | March 23, 1983 | — | Proton-K |
Astronomical Netherland Satellite | August 30, 1974 | Space Research Organisation Netherlands | Scout D-1 |
Astrosat | September 28, 2015 | Indian Space Research Organisation | Polar Satellite Launch Vehicle-XL |
Astérix | November 26, 1965 | CNES | Diamant |
| ASUSat | January 27, 2000 | — | Minotaur I |
| AT&T T-16 | June 20, 2019 | — | Ariane 5 ECA |
ATENEA | April 1, 2026 | Comisión Nacional de Actividades Espaciales | Space Launch System Block 1 |
| Athena-Fidus | February 6, 2014 | Direction générale de l'Armement, CNES, Italian Space Agency | Ariane 5 ECA |
| ATL-1 | December 6, 2019 | — | Electron |
| Atlantic Bird 7 | September 24, 2011 | — | Zenit-3SL |
| Atlas Centaur 2 | November 27, 1963 | — | Atlas-Centaur |
| Atlas Centaur 6 | August 11, 1965 | — | Atlas-Centaur |
| Atlas Centaur 8 | April 8, 1966 | — | Atlas-Centaur |
Atmospheric Reentry Demonstrator | October 21, 1998 | European Space Agency | Ariane 5G |
| ATS C-2 | January 1, 1974 | — | — |
AubieSat-1 | October 28, 2011 | Auburn University | Delta II |
Augmented Target Docking Adapter | June 1, 1966 | — | Atlas SLV-3 |
Aura | July 15, 2004 | National Aeronautics and Space Administration | Delta II |
| Aura | September 27, 1975 | CNES | Diamant |
| Aurora 1 | June 29, 1967 | — | Thor-Burner |
| Aurora 2 | May 29, 1991 | — | Delta II |
AUSSAT A1 | August 27, 1985 | Optus | Space Shuttle |
| AUSSAT A2 | November 27, 1985 | Optus | Space Shuttle |
| AUSSAT A3 | September 16, 1987 | Optus | Ariane 3 |
| AUSSAT B1 | August 13, 1992 | — | Long March 2E |
| AUSSAT B2 | December 21, 1992 | — | Long March 2E |
| Australis-OSCAR 5 | January 23, 1970 | — | Thor-Delta |
| Austrian Debris Detection Low Earth (Orbit) Reconnoiter | January 13, 2022 | — | LauncherOne |
| AUTSAT 1 | January 15, 2019 | — | Simorgh |
| AVUM debris (adapter) | August 2, 2017 | — | Vega |
| Ayame 1 | February 6, 1979 | — | N-I |
| Ayame 2 | February 22, 1980 | — | N-I |
AzaadiSAT | August 7, 2022 | Space Kidz India | Small Satellite Launch Vehicle |
AzaadiSAT-2 | February 10, 2023 | Space Kidz India | Small Satellite Launch Vehicle |
| Azersky | June 30, 2014 | Azercosmos, Airbus DS Geo | Polar Satellite Launch Vehicle |
Azerspace-1 | February 7, 2013 | Azerbaijan National Aerospace Agency | Ariane 5 ECA |
Azerspace-2 | September 25, 2018 | Azercosmos | Ariane 5 ECA |
AztechSat-1 | December 5, 2019 | — | Falcon 9 |
Azur | November 8, 1969 | — | Scout B |
| Ägypten 2 | December 4, 2023 | — | Long March 2C |