Mary Miller may refer to:
Performers Mary Miller (soprano) (c.1926–1949), Australian concert singer Mary Miller (actress) (1929–2020), English stage and TV performer Mary K. Miller (born 1957), American country singer
Public officials Mary Miller Glasscock (1872–1925), American wife of West Virginia governor, William Glasscock Dame Mary Hedley-Miller (1923–2010), British Treasury under-secretary Mary J. Miller (born 1955), American Treasury Under secretary Mary Miller (politician) (born 1959), American congresswoman from Illinois
Writers Mary Boykin Miller (1823–1886), American diarist (Mary Chesnut's Civil War) Mary A. Miller (1837–1925), American missionary editor Mary Rogers Miller (1868–1971), American writer and educator Mary Farnham Miller (1872–1920), American botanist Mary Durack Miller (1913–1994), Australian author and historian Mary Miller (art historian) (born 1952), American academic and author Mary Dockray-Miller (born 1965), American scholar of history Mary Miller (artistic director) (active since 1990), Scottish violinist, music critic for The Scotsman Mary Miller (writer) (active since 2009), American fiction writer
Others Mary Miller (Colorado businesswoman) (1843–1921), American pioneer; founder of Lafayette, Colorado Mary Millicent Miller (1846–1894), American steamboat master
See also Mary Millar (1936–1998), English singer and actress (Keeping Up Appearances)