Wallfisch is a surname. Notable people with the surname include:
Anita Lasker-Wallfisch (born 1925), British cellist, married to Peter Benjamin Wallfisch (born 1979), English composer, conductor, and pianist, son of Raphael Elizabeth Wallfisch (born 1952), Australian violinist, married to Raphael Ernst Wallfisch (1920–1979), American violist Joanna Wallfisch (born 1985), singer-songwriter and jazz singer, daughter of Raphael Maya Lasker-Wallfisch (born 1958), psychoanalytic psychotherapist, author, playwright, educator, sister of Raphael Paul Wallfisch (born 1962), American musician, son of Ernst Peter Wallfisch (1924–1993), British concert pianist Raphael Wallfisch (born 1953), English cellist, son of Peter Simon Wallfisch (born 1982), British-German classical singer and cellist, son of Raphael