Mary Jo, various spelled Mari Jo, Mary Joe and similar, is a feminine given name found mainly in the United States. It is often a contraction of Mary Josephine, Mary Joanna or similar.

Notable people with the name include:

• Mary Jo Arndt (1933–2011), American activist and civic leader
• Mary Jo Baedecker (born 1941), American geochemist
• Mary Jo Bane, American political scientist
• Mary Jo Bang (born 1946), American poet
• Mary Jo Bona, American literary scholar
• Mary Jo Bole (born 1956), American artist
• Mari Jo Buhle (born 1943), American historian
• Mary Jo Buttafuoco (born 1955), American author and motivational speaker
• Mary Jo Catlett (born 1938), American actress
• Mary Jo Chelette (1939–1984), American country singer
• Mary Jo Codey (born 1955), American healthcare activist
• Maryjo Cohen (born 1952), American business executive
• Mary Jo Daley (born 1949), American politician
• Mary Jo Deschanel (born 1945), American actress
• Mary Jo Duffy (born 1954), American comic book editor and writer
• Mary Jo Estep (1909 or 1910—1992), Shoshone massacre survivor
• Mary Jo Eustace (born 1962), Canadian actress and chef
• Mary Joe Fernández (born 1971), American tennis player
• Mary Jo Fisher (born 1962), Australian politician
• Mary Jo Foley, American writer
• Mary Jo Freshley (born 1934), American Korean dance instructor
• Mary Joe Frug (1941–1991), American legal scholar
• Mary Jo Haddad, Canadian nurse and health care executive
• Mary Jo Heath (born 1954), American radio music host
• Mary Jo Keenen (born 1961), American actress
• Mary Jo Kilroy (born 1949), American attorney and politician
• Mary Jo Kopechne (1940–1969), American secretary
• Mary Jo Leddy, (born 1946), Canadian writer and activist
• Mary Jo Markey, American television and film editor
• Mary Jo McGuire (born 1956), American politician
• MariJo Moore, American writer
• Mary-Jo Morell (1937–2025), nom de plume of German writer Doris Gercke
• Mary Jo Nye (born 1944), American historian of science
• Mary Jo Ondrechen (born 1953), American chemist
• Mary Jo Pehl (born 1960), American writer, actress, and comedian
• Mary Jo Peppler (born 1944), American volleyball player and coach
• Mary Jo Perino, American television sports journalist
• Mary Jo Podgurski, American healthcare educator
• Mary Jo Putney, American author
• Mary Jo Randle (born 1954), English actress
• Mari-Jo P. Ruiz, Filipina mathematician
• Mary Jo Salter (born 1954), American poet
• Mary Jo Sanders (born 1974), American boxer
• Mary Jo Shelly (1902–1976), American military administrator
• Mary Jo Slater (born 1946), American casting director and producer
• Mary-Jo Starr (born 1959), stage name of Australian actress, director, and singer Kaarin Fairfax
• Mary Jo Tarola (1928–2017), birth name of American model and actress Linda Douglas
• Mary Jo Taylor (born 1953), American politician
• Mary Jo Tiampo (born 1962), American freestyle skier
• Mary Jo Watson, Seminole art historian
• Mary Jo West (born 1948), American news anchor
• Mary Jo White (born 1947), American attorney and civil servant
• Mary Jo White (Pennsylvania politician) (born 1941), American state senator
• Mary Jo Wilhelm (born 1955), American politician
• Mary Jo Wills (born 1951), American diplomat
• Mary-Jo Wormell (born 1947), birth name of British writer Mary Lyons
• Mary Jo Young, American contestant on American Idol season 19

Fictional characters

• Mari Jo Mason, in the US TV soap opera The Young and the Restless , played by Pamela Bach and Diana Barton
• Mary Jo Shively, in the US TV sitcom Designing Women , played by Annie Potts

Name list

This page or section lists people that share the same given name.
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