Mary Shaw may refer to:
Mary Shaw (contralto) (1814–1876), English classical contralto of concerts and operas Mary Shaw (actress) (1854–1929), American actress, suffragette, early feminist, and playwright Mary Shaw (computer scientist) (born 1943), American software engineer Mary Shaw Shorb (1907–1990), American research scientist Mary Turner Shaw (1906–1990), Australian architect
Fictional characters Mary Shaw, in the Canadian animated web series Mary and Flo On the Go!, voiced by Rebecca Liddiard