Munchkin 8: Half Horse, Will Travel is a 112-card expansion for Munchkin that introduces two new races to the game: Centaur and Lizard Guy. A myriad of other new cards are included, such as race/class enhancers (Elite, Legendary, and Elder) and monsters (Gecko On The Telly, Centaurpede, and the Knight Mare).

The name for this expansion was picked via a contest. Users were asked to submit entries, and the Steve Jackson Games staff picked "Half Horse, Will Travel" – submitted by Michael Shore – as the best entry.