One Bad Pig is a Christian punk and metal crossover band from Austin, Texas which formed in 1985. The Encyclopedia of Contemporary Christian Music describes them as "Quite possibly the most popular hard-punk act ever to arise within the Christian music scene." They were known for their mischief and irreverence on-stage, as reflected even in their reunion at Cornerstone in 2000.

The group evolved out of a street ministry lead by Carey Womack, who was studying to become a Baptist minister at the time. Although they have not released any full-length albums of new material since 1991, they have written new songs, and have not declared their band broken up yet. They still play reunion shows at various Christian rock festivals.

Johnny Cash performed guest vocals on One Bad Pig's cover of his song "Man In Black", which One Bad Pig included on their 1991 album, I Scream Sunday. Although Cash died in 2003, One Bad Pig still consider him to be one of their "honorary members".

Bob Hartman performed as a guest guitarist on One Bad Pig's cover of his song "Judas Kiss" from his band Petra's More Power To Ya album.

The band was subject to criticism from the anti-Christian Rock movement. The group Dial-the-Truth Ministries, which is affiliated with the King-James-Only Movement, produced a widely distributed tract entitled Christian Rock: Blessing or Blasphemy?. In it they criticised the group for its concert antics, lyrics, and involvement with Johnny Cash, who was attacked separately.