SP6 may refer to: SP6 RNA polymerase, a RNA polymerase related to the T7 RNA polymerase one of the three versions of the 9x39 mm rifle cartridge a model of steam toy made by British manufacturer Mamod Service pack 6 in computing 4685 Karetnikov (1978 SP6), a Main-belt Asteroid discovered on September 27, 1978 9154 Kolʹtsovo (1982 SP6), a Main-belt Asteroid discovered on September 16, 1982
Spleen 6, an acupuncture point above the ankle on the inside of the leg.
Specialist 6, an obsolete enlisted rank in the United States Army. See Specialist (rank).
Surface Pro 6, a 2-in-1 detachable tablet computer developed by Microsoft Socket SP6, a CPU socket for AMD server CPUs