SETC may refer to:
State Express Transport Corporation, a state-owned transport corporation in the Indian state of Tamil Nadu Space Exploration Technologies Corporation, an American spacecraft manufacturer Strong Europe Tank Challenge, an annual tank crew competition hosted by the U.S. Army Europe and the German Army Suez Economic and Trade Cooperation Zone "set byte to 1 on carry" (SETC), one of the SETcc instructions in the x86 instruction set SetC; see Cartesian closed category Southeastern Theatre Conference, a non-profit organization; see Centre Stage State Economic and Trade Commission, a Chinese agency now merged into the National Development and Reform Commission Surface-Engineered Tape Casting, a method of fabricating carbon nanotubes