"Disco Lady" is a 1976 single for Johnnie Taylor that went on to become his biggest hit. It spent four weeks at number one on the Hot 100 and six weeks on the BillboardR&B chart in the U.S. It was also the first single to be certified platinum by the RIAA. The single was Taylor's first for Columbia Records, where Taylor signed after his long-time label, Stax Records, went bankrupt. The song was produced by Taylor's longtime producer, Don Davis. Among the guests on the song were three members of Parliament-Funkadelic: bassist Bootsy Collins, keyboardist Bernie Worrell and guitarist Glen Goins, and Dawn's Telma Hopkins.

"Disco Lady" is the first Hot 100 number-one hit to include the word "disco", though there had been several disco songs that had already reached number one.