John Joseph Wardle, known by the stage name Jah Wobble, is an English bass guitarist and singer. He became known to a wider audience as the original bass player in Public Image Ltd (PiL) in the late 1970s and early 1980s; he left the band after two albums.

Public Image Ltd are an English post-punk band formed by lead vocalist John Lydon, guitarist Keith Levene, bassist Jah Wobble, and drummer Jim Walker in May 1978. The group's line-up has changed frequently over the years; Lydon has been the sole constant member.