Florence Quivar (born March 3, 1944, in Philadelphia, Pennsylvania) is an American operatic mezzo-soprano who is considered to be "one of the most prominent singers of her generation."[1] She has variously been described as having a "rich, earthy sound and communicative presence"[2] as "always reliable"[3] and as "a distinguished singer, with a warm, rich voice and a dignified performing presence."[4] From 1977 to 1997 she was a regular performer at the Metropolitan Opera where she gave more than 100 performances.