Mary West may refer to:
Mae West (1893–1980, born Mary Jane West), American actress, singer, comedian, screenwriter, and playwright Mary Allen West (1837–1892), American journalist, editor, educator, philanthropist, superintendent of schools, and temperance worker Mary Jo West (born 1948), American former television news anchor, spokeswoman and communications director Mary Pratt (painter) (1935–2018, born Mary Frances West), Canadian painter Mary West (businesswoman) (born 1945/46), American entrepreneur and philanthropist
See also Cheves Perky (1874–1940, born Mary Cheves West Perky), American psychologist Jessamyn West (writer) (1902–1984, born Mary Jessamyn West), American author Mary Jane West-Eberhard (born 1941), American theoretical biologist Mary Stanley, Countess of Derby (1824–1900, née Lady Mary Sackville-West), English grande dame and political hostess Mary West Niles (1854–1933), American physician and missionary