| D-STAR ONE SPARROW | December 27, 2018 | — | Soyuz-2.1a |
| D5-A | May 17, 1975 | — | Diamant |
D5-B | May 17, 1975 | — | Diamant |
| Daqi-1 | April 15, 2022 | — | Long March 4C |
| Dark Matter Particle Explorer | December 17, 2015 | — | Long March 2D |
| DARPASAT | March 13, 1994 | — | Minotaur-C |
DART Impactor | November 24, 2021 | Applied Physics Laboratory | Falcon 9 Block 5 |
| DASH 1 | May 9, 1963 | — | Atlas-Agena B |
| Dash 2 | July 19, 1963 | — | Atlas-Agena B |
| Data Relay Transponder Satellite | September 10, 2002 | Japan Aerospace Exploration Agency | H-IIA |
| DAVE | September 15, 2018 | — | Delta II |
Dawn | September 27, 2007 | Jet Propulsion Laboratory | Delta II |
| DBS-1 | December 18, 1993 | — | Ariane 44L |
| DCBB | September 19, 2015 | — | Long March 6 |
Deep Impact | January 12, 2005 | Jet Propulsion Laboratory | Delta II |
Deep Impact Impactor | January 12, 2005 | Jet Propulsion Laboratory | Delta II |
Deep Space 1 | October 24, 1998 | National Aeronautics and Space Administration | Delta II |
Deep Space 2 | January 3, 1999 | Jet Propulsion Laboratory | Delta II |
Deep Space Atomic Clock | June 25, 2019 | — | Falcon Heavy |
Deep Space Climate Observatory | February 11, 2015 | National Oceanic and Atmospheric Administration | Falcon 9 v1.1 |
Delfi-C3 | April 28, 2008 | Delft University of Technology | Polar Satellite Launch Vehicle |
| Delfi-n3Xt | November 21, 2013 | Delft University of Technology | Dnepr |
| Demeter | June 29, 2004 | — | Dnepr |
| DeMi | February 15, 2020 | — | Antares |
Demonstration and Science Experiments | June 25, 2019 | — | Falcon Heavy |
Demonstration for Autonomous Rendezvous Technology | April 15, 2005 | National Aeronautics and Space Administration | Pegasus |
| Demonstrator of Atmospheric Reentry System and Hypervelocity | February 4, 2002 | — | H-IIA |
| Denpa | August 19, 1972 | Institute of Space and Astronautical Science | M-4S |
| DeorbitSail-1 | July 10, 2015 | — | Polar Satellite Launch Vehicle-XL |
| Deployable Boom and Umbrella Test | February 7, 1990 | — | H-I |
| DESPATCH | December 3, 2014 | — | H-IIA |
| DFFC | June 25, 2016 | China National Space Administration | Long March 7 |
| DFS Kopernikus 1 | June 5, 1989 | — | Ariane 44L |
| DFS Kopernikus 2 | July 24, 1990 | — | Ariane 44L |
| DFS-Kopernikus 3 | October 12, 1992 | — | Delta II |
| Diademe 1 | February 8, 1967 | — | Diamant |
| Diademe 2 | February 15, 1967 | — | Diamant |
| Dial MIKA | March 10, 1970 | — | Diamant |
| DIAL/WIKA | March 10, 1970 | — | Diamant |
| Dianjian-1 | May 15, 2026 | — | Lijian-1 |
| Diapason | February 17, 1966 | — | Diamant |
| DIAPO | December 1, 1975 | — | Diamant |
| DIDO satellites | February 15, 2017 | — | Polar Satellite Launch Vehicle |
| DIDO-2 | February 15, 2017 | — | Polar Satellite Launch Vehicle-XL |
| Diffuse Ultraviolet Experiment | July 24, 1992 | — | Delta II |
| DirectTV 1-R | October 10, 1999 | — | Zenit-3SL |
| DirecTV 15 | May 27, 2015 | — | Ariane 5 ECA |
| DirecTV 2 | August 3, 1994 | — | Atlas II |
| DirecTV 3 | June 10, 1995 | — | Ariane 42P |
| DirecTV 4S | November 27, 2001 | — | Ariane 44LP |
| DirecTV 7S | May 4, 2004 | — | Zenit-3SL |
| DirecTV 8 | May 22, 2005 | — | Proton-M |
| DirecTV 9S | October 13, 2006 | — | Ariane 5 ECA |
| DirecTV-10 | July 7, 2007 | DirecTV | Proton-M |
| DirecTV-11 | March 19, 2008 | DirecTV | Zenit-3SL |
| DirecTV-12 | December 29, 2009 | DirecTV | Proton-M |
| DirecTV-14 | December 6, 2014 | DirecTV | Ariane 5 ECA |
| DirecTV-5 | May 7, 2002 | DirecTV | Proton-K |
Discoverer 1 | February 28, 1959 | United States Air Force | Thor-Agena A |
Discoverer 10 | February 19, 1960 | — | Thor-Agena A |
Discoverer 11 | April 15, 1960 | — | Thor-Agena A |
Discoverer 12 | June 29, 1960 | — | Thor-Agena A |
| Discoverer 13 | August 10, 1960 | — | Thor-Agena A |
| Discoverer 14 | August 18, 1960 | — | Thor-Agena A |
| Discoverer 15 | September 13, 1960 | — | Thor-Agena A |
| Discoverer 16 | October 26, 1960 | — | Thor-Agena B |
| Discoverer 17 | November 12, 1960 | — | Thor-Agena B |
| Discoverer 18 | December 7, 1960 | — | Thor-Agena B |
| Discoverer 19 | December 20, 1960 | — | Thor-Agena B |
| Discoverer 2 | April 13, 1959 | — | Thor-Agena A |
| Discoverer 20 | February 17, 1961 | — | Thor-Agena B |
| Discoverer 21 | February 18, 1961 | — | Thor-Agena B |
| Discoverer 22 | March 30, 1961 | — | Thor-Agena B |
| Discoverer 23 | April 8, 1961 | — | Thor-Agena B |
| Discoverer 24 | June 8, 1961 | — | Thor-Agena B |
| Discoverer 25 | June 16, 1961 | — | Thor-Agena B |
| Discoverer 26 | July 7, 1961 | — | Thor-Agena B |
| Discoverer 27 | July 21, 1961 | — | Thor-Agena B |
| Discoverer 28 | August 4, 1961 | — | Thor-Agena B |
| Discoverer 29 | August 30, 1961 | — | Thor-Agena B |
Discoverer 3 | June 3, 1959 | — | Thor-Agena A |
| Discoverer 30 | September 12, 1961 | — | Thor-Agena B |
| Discoverer 31 | September 17, 1961 | — | Thor-Agena B |
| Discoverer 32 | October 13, 1961 | — | Thor-Agena B |
| Discoverer 33 | October 23, 1961 | — | Thor-Agena B |
| Discoverer 34 | November 5, 1961 | — | Thor-Agena B |
| Discoverer 35 | November 15, 1961 | — | Thor-Agena B |
Discoverer 36 | December 12, 1961 | — | Thor-Agena B |
| Discoverer 37 | January 13, 1962 | — | Thor-Agena B |
| Discoverer 38 | February 27, 1962 | — | Thor-Agena B |
Discoverer 4 | June 25, 1959 | — | Thor-Agena A |
Discoverer 5 | August 13, 1959 | — | Thor-Agena A |
| Discoverer 5 Capsule | August 13, 1959 | — | Thor-Agena A |
Discoverer 6 | August 19, 1959 | — | Thor-Agena A |
Discoverer 7 | November 7, 1959 | — | Thor-Agena A |
Discoverer 8 | November 20, 1959 | — | Thor-Agena A |
Discoverer 9 | February 4, 1960 | — | Thor-Agena A |
| DiskSat A | December 18, 2025 | The Aerospace Corporation | Electron |
| DiskSat B | December 18, 2025 | The Aerospace Corporation | Electron |
| DiskSat C | December 18, 2025 | The Aerospace Corporation | Electron |
| DiskSat D | December 18, 2025 | The Aerospace Corporation | Electron |
Diwata-1 | March 23, 2016 | Department of Science and Technology | Atlas V 401 |
Diwata-2 | October 29, 2018 | Department of Science and Technology | H-IIA |
| DIY-1 | March 22, 2021 | — | Soyuz-2.1a |
| DLR-Tubsat | May 26, 1999 | Technische Universität Berlin | Polar Satellite Launch Vehicle |
DME | November 29, 1965 | — | Thor-Agena B |
| DMSP 4A/F4 | October 11, 1967 | — | Thor-Burner |
| DMSP 5B/F2 | March 24, 1972 | — | Thor-Burner |
| DMSP 5B/F3 | November 9, 1972 | — | Thor-Burner |
| DMSP 5B/F4 | August 17, 1973 | — | Thor-Burner |
| DMSP 5B/F5 | March 16, 1974 | — | Thor-Burner |
| DMSP 5C/F1 | August 9, 1974 | — | Thor-Burner |
| DMSP 5C/F2 | May 24, 1975 | — | Thor-Burner |
| DMSP 5D-1/F01 | September 11, 1976 | — | Thor DSV-2U |
| DMSP 5D-1/F02 | June 5, 1977 | — | Thor DSV-2U |
| DMSP 5D-1/F03 | May 1, 1978 | — | Thor DSV-2U |
| DMSP 5D-1/F04 | June 6, 1979 | — | Thor DSV-2U |
| DMSP 5D-1/F05 | July 15, 1980 | — | Thor DSV-2U |
| DMSP 5D-2 F8 (USA 26) | June 20, 1987 | — | Atlas E/F |
| DMSP 5D-2/F06 | December 21, 1982 | — | Atlas E/F |
| DMSP 5D-2/F07 | November 18, 1983 | — | Atlas E/F |
| DMSP 5D-2/F09 | February 3, 1988 | — | Atlas E/F |
| DMSP 5D-2/F10 | December 1, 1990 | — | Atlas E/F |
| DMSP 5D-2/F11 | November 28, 1991 | — | Atlas E/F |
| DMSP 5D-2/F12 | August 29, 1994 | — | SM-65E Atlas |
| DMSP 5D-2/F13 | March 24, 1995 | — | SM-65E Atlas |
| DMSP 5D-2/F14 | April 4, 1997 | — | Titan 23G |
DMSP 5D-3 F19 | April 3, 2014 | — | Atlas V 401 |
| DMSP 5D-3/F15 | December 12, 1999 | — | Titan 23G |
| DMSP 5D-3/F16 | October 18, 2003 | — | Titan 23G |
| DMSP Block 3 F1 | May 20, 1965 | — | Thor-Burner |
DMSP Block 4A F1 | September 16, 1966 | — | Thor-Burner |
DMSP Block 4A F2 | February 8, 1967 | — | Thor-Burner |
DMSP(65-072A) | September 10, 1965 | — | Thor-Burner |
DMSP(66-026A) | March 31, 1966 | — | Thor-Burner |
| DMSP-F18 | October 18, 2009 | — | Atlas V 401 |
Dodecahedron | March 9, 1965 | — | Thor-Agena D |
Dodecapole 2 | August 13, 1965 | — | Thor-Ablestar |
DODGE | July 1, 1967 | National Aeronautics and Space Administration | Titan IIIC |
| DOGE-1 | September 13, 2026 | Jackson Palmer | Falcon 9 Block 5 |
Dong Fang Hong I | April 24, 1970 | China Academy of Space Technology | Long March 1 |
| Dong Fang Hong-3 1 | November 29, 1994 | — | Long March 3A |
| Dongfanghong-2 1 | January 29, 1984 | — | Long March 3 |
| Dongfanghong-2 2 | April 8, 1984 | — | Long March 3 |
| Dongfanghong-2A 1 | February 1, 1986 | — | Long March 3 |
| Dongfanghong-2A 2 | March 7, 1988 | — | Long March 3 |
| Dongfanghong-2A 3 | December 22, 1988 | — | Long March 3 |
| Dongfanghong-2A 4 | February 4, 1990 | — | Long March 3 |
| Dongfanghong-2A 5 | December 28, 1991 | — | Long March 3 |
| Dongfanghong-3 2 | May 11, 1997 | — | Long March 3A |
| Doosti | February 5, 2019 | — | Safir |
DOS-2 | July 29, 1972 | — | Proton-K |
| DOSAAF-85 | December 26, 2019 | — | Rokot |
| Double Star 1 | December 29, 2003 | European Space Agency, China National Space Administration | Long March 2C |
| Double Star 2 | July 25, 2004 | China National Space Administration, European Space Agency | Long March 2C |
| Dove-1 | April 21, 2013 | — | Antares |
| Dove-2 | April 19, 2013 | Planet Labs | Soyuz-2.1a |
Dove-OSCAR 17 | January 22, 1990 | — | Ariane 40 |
Drag and Atmospheric Neutral Density Explorer | September 29, 2013 | University of Colorado Boulder | Falcon 9 v1.1 |
Dragon Spacecraft Qualification Unit | June 4, 2010 | SpaceX | Falcon 9 |
| DragonSat | November 20, 2013 | — | Minotaur I |
| DRO-A | March 13, 2024 | Chinese Academy of Sciences | Long March 2C |
| DRO-B | March 13, 2024 | Chinese Academy of Sciences | Long March 2C |
| Dror 1 | July 13, 2025 | Israel Aerospace Industries Ltd | Falcon 9 Block 5 |
| DRUMS | November 9, 2021 | — | Epsilon |
DS-U3-IK No. 5 | June 3, 1975 | Interkosmos | Kosmos-3M |
| DSN-2 | January 24, 2017 | DSN Corporation | H-IIA |
| DSN-3 | November 4, 2024 | DSN Corporation | H3 Launch Vehicle |
| DSP 10 | March 6, 1982 | United States Air Force | Titan IIIC |
| DSP 11 | April 14, 1984 | United States Air Force | Titan 34D |
| DSP 16 | November 24, 1991 | — | Space Shuttle |
| DSP 18 | February 23, 1997 | — | Titan IV |
| DSP 19 | April 9, 1999 | — | Titan IV |
| DSP 20 | May 8, 2000 | — | Titan IV |
| DSP F6 | June 26, 1976 | — | Titan IIIC |
| DSP F7 | February 6, 1977 | — | Titan IIIC |
| DSP F8 | June 10, 1979 | — | Titan IIIC |
| DSP F9 | March 16, 1981 | — | Titan IIIC |
| DTUsat | June 30, 2003 | — | Rokot |
| DUAL-A | August 1, 1975 | — | — |
| DUAL-A1 | August 1, 1975 | — | — |
DubaiSat-1 | July 29, 2009 | Mohammed bin Rashid Space Centre | Dnepr |
DubaiSat-2 | November 21, 2013 | Mohammed bin Rashid Space Centre | Dnepr |
| Duchifat 2 | April 18, 2017 | — | Atlas V 401 |
Duchifat-1 | June 19, 2014 | — | Dnepr |
| DUTHSat | April 18, 2017 | — | Atlas V 401 |
| DX 1 | July 8, 2014 | — | Soyuz-2.1b |
Dynamics Explorer 1 | August 3, 1981 | National Aeronautics and Space Administration | Delta 3000 |
Dynamics Explorer 2 | August 3, 1981 | National Aeronautics and Space Administration | Delta 3000 |