Wrestling Society X (WSX) was an American professional wrestling promotion owned by Big Vision Entertainment. Wrestling Society X (WSX) also refers to the promotion's short-lived television series produced in 2007 by Big Vision Entertainment and MTV Series Entertainment. The weekly television series aired on MTV, MTV2, MTV Tr3s, and over a dozen other MTV outlets throughout the world. WSXtra, a program featuring WSX matches and interviews not broadcast on MTV, was available on the MTV website and on television via video on demand services.

WSX was presented as a wrestling-based secret society that used a venue referred to as the "WSX Bunker", complete with an artificially worn-out looking wrestling ring for its matches. All matches held within this venue were held under the falls count anywhere stipulation. The promotion and series also stood out due to its unorthodox presentation of wrestling; this included frequent use of highly expressive plants, crowd sound effects, electrical sound effects, visual effects, and camera shakes when a wrestler would fall onto "electrified weapons". Along with wrestling, WSX on MTV featured musical guests playing at the start of each television broadcast, with some band members joining the broadcast team (consisting of Kris Kloss and Bret Ernst) after the performance.