| 2010-069A | Ka-Sat |
| 2009-002D | Kagayaki |
| 2007-039A | Kaguja |
| 2007-039A | Kaguya |
| 2003-042C | KAISTSat-4 |
| 1998-011A | Kakehashi |
| 2002-043A | Kalpana-1 |
| 2002-056C | Kanta-Kun |
| 2006-022A | KazSat 1 |
| 2011-035B | KazSat-2 |
| 1978-060A | Kennan 2 |
| 1976-125A | Kennan 1 |
| 2009-011A | Kepler |
| 1994-010B | KF-1 |
| viz. | KH-1 |
| viz. | KH-2 |
| viz. | KH-3 |
| viz. | KH-4 |
| viz. | KH-4A |
| viz. | KH-4B |
| viz. | KH-5 |
| 1963-016A | KH-6 Mission 8002 |
| 1963-032A | KH-6 Mission 8003 |
| viz. | KH-8 |
| viz. | KH-9 |
| 1976-125A | KH-11 F-1 |
| 1978-060A | KH-11 F-2 |
| 1996-072A | KH-12 F-3 |
| viz. | Kiku |
| 2005-031A | Kirari |
| viz. | Kitsat |
| 1971-008A | Kitty Hawk |
| 2008-007A | Kizuna |
| 2009-002H | KKS-1 |
| 2000-015A | Kluster-2 GVM |
| 1992-052B | KO-23 |
| 2001-051C | Kolibri |
| 2006-019A | Kompas-2 |
| 2001-056B | Kompass |
| 1999-070A | KOMPSAT-1 |
| 2006-031A | KOMPSAT-1 |
| 1973-022A | Kopernik 500 |
| 1989-041B | Kopernikus 1 |
| 1990-063B | Kopernikus 2 |
| 1992-066A | Kopernikus 3 |
| viz. | Korabl'-sputnik |
| viz. | Koreasat |
| 2001-032A | Koronas-F |
| 2009-003A | Koronas-Foton |
| 1994-014A | Koronas-I |
| viz. | Kosmičeskij korabl' |
| viz. | Kosmos |
| viz. | Kospas |
| 2009-048A | Kounotori 1 |
| 2011-003A | Kounotori 2 |
| 1990-048A | Kristall |
| 2004-052C | KS5MF2 |
| 2010-020A | KSat |
| 2009-002G | Kukai |
| 1997-070A | Kupon 1 |
| 1987-030A | Kvant |
| 1987-030A | Kvant 1 (Kvant) |
| 1989-093A | Kvant 2 |
| 1978-014A | Kyokko |