Kosmos 15 (Russian: Космос 15 meaning Cosmos 15) or Zenit-2 No.9 was a Soviet optical film-return reconnaissance satellite which was launched in 1963.

In addition to reconnaissance, it was also used for research into radiation in support of the Vostok programme.

The launch took place at 08:24 GMT on 22 April 1963, using Site 1/5 at the Baikonur Cosmodrome.

In addition to reconnaissance, Kosmos 15 carried an experiment package to measure radiation levels in its environment and was also used for meteorological research.

Its return capsule descended under parachute and was recovered by the Soviet forces in steppe in Kazakhstan.