Look up big rig in Wiktionary, the free dictionary.
A big rig or semi-trailer truck is an articulated vehicle that consists of a towing engine.
It may also refer to:
- Big Rigs: Over the Road Racing, a 2003 video game
- Big Rig (film), a 2008 documentary film
- Big Rig (band), a band
- Ron "Big Rig" Michaels, a disc jockey at WXTB in Tampa