"Messin' with the Kid" is a rhythm and blues-influenced blues song originally recorded by Junior Wells in 1960. Chief Records owner/songwriter/producer Mel London is credited as the songwriter. Considered a blues standard, it is Junior Wells's best-known song. "Messin' with the Kid" was inducted into the Blues Hall of Fame and has been recorded by a variety of blues and other artists.

Junior Wells was an American singer, harmonica player, and recording artist. He is best known for his signature song "Messin' with the Kid" and his 1965 album Hoodoo Man Blues, described by the critic Bill Dahl as "one of the truly classic blues albums of the 1960s". Wells himself categorized his music as rhythm and blues.