Steve Ignorant is a singer and artist.

He co-founded the anarchist punk rock band Crass with Penny Rimbaud in 1977, and has worked with other groups including Conflict, Schwartzeneggar (sic), The Stratford Mercenaries and Current 93 (under the name Stephen Intelligent) as well as being an occasional solo performer.

He is also a sculptor, and has worked as a traditional Punch and Judy performer using the name Professor Ignorant. In recent years he has developed an interest in the history of traditional east London music hall performance.

In 2010 Ignorant announced plans to do a tour called The Last Supper, performing Crass songs from the period 1977-1982.