Judith Doris Forst (née Lumb) OC OBC (born November 7, 1943) is a Canadian mezzo-soprano. Born in New Westminster, British Columbia, she received a Bachelor of Music from the University of British Columbia in 1964. She is the sister-in-law of long time Vancouver radio personality Brian (Frosty) Forst. In 1968 she won the Metropolitan Opera National Council Auditions. In 1991, she was made an Officer of the Order of Canada. In 2001, she was awarded the Order of British Columbia.