SP8 may refer to : 11980 Ellis (1995 SP8), a Main-belt Asteroid discovered on September 17, 1995 The Sp8 transcription factor gene or its protein product SP-8 may refer to : SP-8 (Brazil), a state highway in the state of São Paulo, Brazil Smart Parts SP-8, an electro-pneumatic paintball marker manufactured by Smart Parts USS Patrol No. 4 (SP-8), an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919