Mark Walker may refer to:
Politics and law Mark L. Walker (born 1941), member of the Illinois House of Representatives Mark Walker (North Carolina politician) (born 1969), minister and U.S. House of Representatives member for North Carolina's 6th District Mark Walker (Maine politician), member of the Maine House of Representatrives Mark W. Walker, member of the Utah House of Representatives Mark E. Walker (born 1967), United States federal judge in Florida
Other Mark Walker (British Army officer) (1827–1902), Irish recipient of the Victoria Cross Mark Walker (entertainer), British cabaret and musical theatre entertainer; regular cast member of 1980s TV show, The Laughter Show Mark Walker (songwriter) (1846–1924), fisherman and songwriter Mark Alan Walker, professor of philosophy at New Mexico State University Mark H. Walker, writer and board wargame designer Mark Walker (River City), fictional character