Kosmos 115 (Russian: Космос 115 meaning Cosmos 115) or Zenit-2 No.37 was a Soviet, first generation, low resolution, optical film-return reconnaissance satellite launched in 1966.

A Zenit-2 spacecraft, Kosmos 115 was the thirty-seventh of eighty-one such satellites to be launched[4][5] and had a mass of 4,730 kilograms (10,430 lb).

Kosmos 115 was launched by a Vostok-2 rocket[6] flying from Site 31/6 at the Baikonur Cosmodrome.

[1] Kosmos 115 was operated in a low Earth orbit, at an epoch of 22 April 1966, it had a perigee of 201 kilometres (125 mi), an apogee of 294 kilometres (183 mi), an inclination of 65.0° and an orbital period of 89.3 minutes.

Due to a camera malfunction, the satellite failed to take all of the images it had been programmed to produce.