Denise Johnson is a singer from Manchester, United Kingdom. She provides vocals for a range of acts, including Electronic, New Order and Primal Scream, and she also joins A Certain Ratio around 1990.

A Certain Ratio are a Manchester post-punk and funk group formed in the late 1970s. They are one of the acts associated with the development of punk-funk, a style that brings together the energy and aggression of new wave with the rhythms and musicianship of funk and soul. The band continues to record and perform, and its early work is noted for influencing artists including Franz Ferdinand, Radio4, LCD Soundsystem and Interpol.

Johnson is also linked with The Joy and Soli Deo Gloria Cantorum.