List of Kosmos satellites (2501–2750)
The designation Kosmos is a generic name given to a large number of Soviet, and subsequently Russian, satellites, the first of which was launched in 1962. Satellites given Kosmos designations include military spacecraft, failed probes to the Moon and the planets, prototypes for manned spacecraft, and scientific spacecraft. This is a list of satellites with Kosmos designations between 2501 and 2750.
| Designation | Type | Launch date | Carrier rocket | Function | Decay | Remarks |
| Kosmos 2501 | GLONASS-K1 702K | 30 November 2014 21:52 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2502 | Lotos-S1 №1 | 25 December 2014 03:01 | Soyuz-2.1b | ELINT | in orbit | |
| Kosmos 2503 | Bars-M1 | 27 February 2015 11:01 | Soyuz-2.1a | Cartography/Reconnaissance | in orbit | |
| Kosmos 2504 | Unknown | 31 March 2015 13:47 | Rokot/Briz-KM 11A05 | Undisclosed | in orbit | Possible ASAT or close satellite monitoring test. |
| Kosmos 2505 | Kobalt-M | 5 June 2015 15:23 | Soyuz-2.1a | Optical surveillance | in orbit | |
| Kosmos 2506 | Persona | 23 June 2015 16:44 | Soyuz-2.1b | Reconnaissance | in orbit | |
| Kosmos 2507 | Strela-3M 13 | 21:59 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2508 | Strela-3M 14 | 21:59 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2509 | Strela-3M 15 | 21:59 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2510 | EKS-1 | 17 November 2015 06:33 | Soyuz-2.1b / Fregat-M | Missile early warning | in orbit | |
| Kosmos 2511 | Kanopus-ST | 5 December 2015 14:08 | Soyuz-2-1v/Volga | Earth observation | failed to separate | 2 satellites in 1 launch |
| Kosmos 2512 | KYuA-1 | 5 December 2015 14:08 | Soyuz-2-1v/Volga | Radar calibration | in orbit | 2 satellites in 1 launch |
| Kosmos 2513 | Garpun-12L | 15 December 2015 11:03 | Proton-M/Briz-M | Military communications | in orbit | |
| Kosmos 2514 | GLONASS-M 751 | 7 February 2016 03:21 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2515 | Bars-M2 | 24 March 2016 09:42 | Soyuz-2.1a | Cartography/Reconnaissance | in orbit | |
| Kosmos 2516 | GLONASS-M 753 | 29 May 2016 03:21 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2517 | Geo-IK-2 | 4 June 2016 14:00 | Rokot/Briz-KM | Geodesy | in orbit | |
| Kosmos 2518 | EKS-2 | 25 May 2017 06:33 | Soyuz-2.1b / Fregat-M | Missile early warning | in orbit | |
| Kosmos 2519 | Napryazhenie / 14F150 / Nivelir | 23 June 2017 18:04 | Soyuz-2.1v / Volga | Undisclosed. Presumedly military geodesy | in orbit | |
| Kosmos 2520 | Blagovest-11L | 16 August 2017 22:07 | Proton-M / Briz-M | Military communications | in orbit | |
| Kosmos 2521 | Sputnik Inspektor | 23 June 2017 18:04 | Soyuz-2.1v / Volga | Undisclosed | in orbit | Deployed from Kosmos 2519 |
| Kosmos 2522 | GLONASS-M 752 | 22 September 2017 00:02:32 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2523 | Unknown | 23 June 2017 18:04 | Soyuz-2.1v / Volga | Undisclosed | in orbit | Deployed from Kosmos 2519 |
| Kosmos 2524 | Lotos-S1 №2 | 2 December 2017 10:43:26 | Soyuz-2.1b | ELINT | in orbit | |
| Kosmos 2525 | EMKA | 29 March 2018 16:45 | Soyuz-2.1v | Earth Observation | in orbit | |
| Kosmos 2526 | Blagovest-12L | 18 April 2018 22:12 | Proton-M / Briz-M | Military communications | in orbit | |
| Kosmos 2527 | GLONASS-M 756 | 16 June 2018 21:30 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2528 | Lotos-S1 №3 | 25 October 2018 00:15 | Soyuz-2.1b | ELINT | in orbit | |
| Kosmos 2529 | GLONASS-M 757 | 3 November 2018 20:17 | Soyuz-2.1b/Fregat | Navigation | in orbit | |
| Kosmos 2530 | Strela-3M 16 | 02:27 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2531 | Strela-3M 17 | 02:27 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2532 | Strela-3M 18 | 02:27 | Rokot-KM | Military communications | in orbit | 3 satellites in 1 launch |
| Kosmos 2533 | Blagovest-13L | 21 December 2018 00:20 | Proton-M | Military communications | in orbit | |
| Kosmos 2534 | GLONASS-M 758 | 27 May 2019 06:23 | Soyuz-2.1b/Fregat-M | Navigation | in orbit | - |
| Kosmos 2535 | 14F150 №2 / Nivelir-L | 10 July 2019 18:04 | Soyuz-2.1v / Volga | Undisclosed. Presumedly military geodesy | in orbit | 4 classified military satellites in 1 launch. Kosmos 2535 fragmented into 10+ trackable pieces Aug 2019 |
| Kosmos 2536 | 14F150 №2 / Nivelir-L | 10 July 2019 18:04 | Soyuz-2.1v / Volga | Undisclosed. Presumedly military geodesy | in orbit | 4 classified military satellites in 1 launch. Kosmos 2535 fragmented into 10+ trackable pieces Aug 2019 |
| Kosmos 2537 | 14F150 №2 / Nivelir-L | 10 July 2019 18:04 | Soyuz-2.1v / Volga | Undisclosed. Presumedly military geodesy | in orbit | 4 classified military satellites in 1 launch. Kosmos 2535 fragmented into 10+ trackable pieces Aug 2019 |
| Kosmos 2538 | 14F150 №2 / Nivelir-L | 10 July 2019 18:04 | Soyuz-2.1v / Volga | Undisclosed. Presumedly military geodesy | in orbit | 4 classified military satellites in 1 launch. Kosmos 2535 fragmented into 10+ trackable pieces Aug 2019 |
| Kosmos 2539 | Blagovest-14L | 5 August 2019 21:56 | Proton-M | Military communications | in orbit | Initial deployment of the Blagovest constellation completed. |
| Kosmos 2540 | Geo-IK-2 №3 | 30 August 2019 14:00 | Rokot / Briz-KM | Geodesy | in orbit | Penultimate flight of Rokot |
| Kosmos 2541 | EKS-3 | 26 September 2019 07:43 | Soyuz-2.1b / Fregat-M | Missile early warning | in orbit | |
| Kosmos 2542 | Unknown | 25 November 2019 17:52 | Soyuz-2.1v / Volga | Undisclosed. Possible satellite inspection | in orbit | |
| Kosmos 2543 | Unknown | 25 November 2019 17:52 | Soyuz-2.1v / Volga | Undisclosed. Possible satellite inspection | in orbit | Deployed from Kosmos 2542. Claimed by US Space Force to have performed a weapons test in July 2020 |
| Kosmos 2544 | GLONASS-M 759 | 11 December 2019 08:54 | Soyuz-2.1b/Fregat-M | Navigation | in orbit |