Jerry Williams Jr. (born July 12, 1942), generally credited under the pseudonym Swamp Dogg after 1970, is an American country soul and R&B singer, musician, songwriter and record producer. Williams has been described as "one of the great cult figures of 20th century American music."

After recording as Little Jerry and Little Jerry Williams in the 1950s and 1960s, he reinvented himself as Swamp Dogg, releasing a series of satirical, offbeat,