The Dunlop Cry Baby is a popular wah-wah pedal, manufactured by Dunlop Manufacturing, Inc. The name Cry Baby was from the original pedal from which it was copied, the Thomas Organ/Vox Cry Baby wah-wah, first manufactured in 1966. Thomas Organ/Vox failed to register the name as a trademark, leaving it open for Dunlop. More recently, Dunlop manufactured the Vox pedals under licence, although this is no longer the case.

The Thomas Organ Company is an American manufacturer of electronic keyboards and a one-time holder of the manufacturing rights to the Moog synthesizer. The company was a force behind early electronic organs for the home. It went out of business in 1979 but reopened in 1996.