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Function Orbital carrier rocket
Manufacturer Yuzhnoye/NPO Polyot
Country of origin Soviet Union
Height 31 metres (102 ft)
Diameter 1.6 metres (5.2 ft)
Mass 48,110 kilograms (106,060 lb)
Stages 2
Payload to LEO 63S1: 300 kilograms (660 lb)
63SM: 450 kilograms (990 lb)
Launch history
Status Retired
Launch sites Kapustin Yar
Plesetsk (63SM only)
Total launches 63S1: 38
63SM: 122
Successes 63S1: 26
63SM: 113
Failures 63S1: 12
63SM: 9
First flight 63S1: 27 October 1961
63SM: 24 May 1966
Last flight 63S1:19 December 1967
63SM: 18 June 1977

Kosmos-2I (GRAU Index: 11K63, also known as Cosmos-2I) is the designation applied to two Soviet carrier rockets, members of the R-12 family, which were used to orbit satellites between 1961 and 1977. They were superseded by the R-14 derived Kosmos-3 and Kosmos-3M.