Mary Walker

Mary Walker may refer to:
 * Mary Richardson Walker (1811–1877), American missionary
 * Mary Chase Walker (1828–1899), American schoolteacher, pioneer, and suffragette
 * Mary Edwards Walker (1832–1919), American physician and Medal of Honor recipient
 * Mary Ann Walker (1845–1888), Whitechapel murder victim
 * Mary Hardway Walker (1848–1969), Early civil rights activist and educator, resident of Chattanooga USA.
 * Mary Lily Walker (1863–1913), Scottish social reformer
 * Mary Broadfoot Walker (1888–1974), British physician
 * Mary Willis Walker (1942–2023), American crime fiction author
 * Mary L. Walker (born 1948), American lawyer
 * Mary Walker, the alter-ego of the comic book character Typhoid Mary (comics)
 * Mary Walker (rodeo) (born 1959), American former world champion barrel racer
 * Mary Shore Walker (1882–1952), American mathematician
 * Mary Hardway Walker (1848–1969), one of last surviving American slaves
 * Mary Adelaide Walker, English travel writer