X-Ray Spex were an English punk band from London that formed in 1976.

During their first incarnation (1976–79), X-Ray Spex were “deliberate underachievers” and only managed to release five singles and one album. Nevertheless, their first single, "Oh Bondage, Up Yours!", is now acknowledged as a classic punk rock single and the album, Germ Free Adolescents, is widely acclaimed as a classic album of the punk rock genre.

“X-Ray Spex were a wonderful, shambling, musical mess of rebellion, fashion and fun. Main muse Poly Styrene danced, yelped, screamed and sang over the joyful noise belted out by her punchy buzzsaw’n’biscuit-tin band while fighting off Laura Logic’s sax honks from stage left – all with a smile of pure glee.