Smut may refer to:
Smut (fungus), a group of plant parasitic fungi A colloquial term for obscenity in general, or pornography in particular Erotic literature, sometimes referred to as "smut" Smut (comics), an adult British comic title dating back to the 1980s Smut, a band based in Chicago, Illinois Jimmy Means, a former NASCAR driver nicknamed "Smut" "Smut", a song by Tom Lehrer from his 1965 album That Was the Year That Was, referencing the colloquial meaning of the term