Kosmos 17 (Russian: Космос 17 meaning Cosmos 17), also known as DS-A1 No.2 was a technology demonstration satellite which was launched by the Soviet Union in 1963.

Its primary mission was to demonstrate technologies for future Soviet military satellites.

[3] The DS-A1 satellites were developed by Yuzhnoye to test the techniques and equipment for communication and navigation systems and performed radiation measurements.

[1] Kosmos 17 was launched aboard a Kosmos-2I 63S1 rocket, flying from pad 2 of the Mayak-2 at Kapustin Yar.

The next two DS-A1 launches failed (22 August 1963 and 24 October 1963), before Kosmos 53 successfully reached orbit on 30 January 1965.