Lexicon Devil is a three-song EP and the second release by American punk rock band the Germs. It was also the debut output of Slash Records, and of Geza X both as a producer and as a recording engineer. The record was named after its leadoff song.

The Germs were an American punk rock band from Los Angeles, California, originally active from 1976 to 1980. The band's "classic" lineup consisted of singer Darby Crash, guitarist Pat Smear, bassist Lorna Doom and drummer Don Bolles. They released only one album, 1979's (GI), produced by Joan Jett, and were featured in Penelope Spheeris' seminal documentary film The Decline of Western Civilization, which chronicled the Los Angeles punk movement. The Germs disbanded following Crash's suicide in 1980. Their music was influential to many later rock acts, and Smear went on to achieve greater fame performing with Nirvana and Foo Fighters.