Phyllis Weisbart Litoff (3 December 1938 – 7 July 2002) was an American singer, jazz impresario, and artistic director. For many years she was the co-owner of Sweet Basil Jazz Club in Greenwich Village and was one of the founders of the . During the last nine years of her life, she was also the Artistic Director of the Belleayre Music Festival, where the main performing pavilion now bears her name.