Noma Copley (born Norma Rathner, July 31, 1916 – February 22, 2006) was an American fine arts jeweler and art collector noted for her contributions to Surrealist practices and activities. From 1953 through 1968, she was married to William Copley and, with him, helped to acquire one of the largest collections of Surrealist paintings and sculpture in America. In 1954, they established the William and Noma Copley Foundation (subsequently renamed the Cassandra Foundation), a non-profit organization dedicated to fostering the creative arts. According to a 1975 article in New York Magazine, she "emerged from the Paris world of surrealist painters five years ago to become one of New York's most original jewelry designers."