SP6

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