First recorded by Harold Melvin & The Blue Notes (UK #5 1975).
Other hit versions by Thelma Houston (US #1/R&B #1/UK #13 1977), The Communards (US #40/UK #1 1986).
From the wiki: “First charting as a hit for Harold Melvin & the Blue Notes, an act on Gamble & Huff’s Philadelphia International label, in 1975, ‘Don’t Leave Me This Way’ was later a hit single for both Thelma Houston and The Communards. The Blue Notes’ original version of the song featured Teddy Pendergrass’ lead vocal. ‘Don’t Leave Me This Way’ was included as one of the seven tracks on the group’s successful Wake Up Everybody LP but was not released as a single in the U.S.