Kosmos 1894 (Russian: Космос 1894 meaning Cosmos 1894) is a Soviet US-KS missile early warning satellite which was launched in 1987 as part of the Oko programme.

The satellite is designed to identify missile launches using optical telescopes and infrared sensors.

[1] Kosmos 2155 was launched from Site 200/40 at Baikonur Cosmodrome in the Kazakh SSR.

[1] A Proton-K carrier rocket with a DM-2 upper stage was used to perform the launch, which took place at 15:15 UTC on 28 October 1987.

[2] The United States Space Command assigned it the Satellite Catalog Number 18443.