"Lady Friend" is a song by the American rock band the Byrds, written by band member David Crosby and released as a single on July 13, 1967. The single was commercially unsuccessful, only charting at number 82 on the Billboard Hot 100 and failing to chart in the United Kingdom at all.

David Van Cortlandt Crosby was an American singer, songwriter, and guitarist. He first found fame as a member of the Byrds, with whom he helped pioneer the genres of folk rock and psychedelia in the mid-1960s, and later as part of the supergroup Crosby, Stills & Nash, who helped popularize the California sound of the 1970s. In addition to his music, Crosby was known for his outspoken personality, politics, and personal troubles; he was sometimes depicted as emblematic of the counterculture of the 1960s.