Mary Wilson may refer to:

• Mary Wilson, Baroness Wilson of Rievaulx (1916–2018), British poet, wife of Harold Wilson
• Mary L. G. Carus-Wilson (1861–1935), English author and speaker
• Mary Louise Wilson (born 1931), American film, musical theatre, stage and television actress
• Mary Wilson (singer) (1944–2021), American singer, member of Motown group The Supremes
  • Mary Wilson (album), a 1979 album by Mary Wilson
• Mary Wilson, host of Radio New Zealand's Checkpoint news programme
• Mary Ellen Wilson (1864–1956), child abuse victim whose case spurred on the founding of the New York Society for the Prevention of Cruelty to Children
• Mary Wilson (broadcaster) (born 1967), Irish broadcaster and journalist
• Mary Elizabeth Wilson (1893–1963), serial killer known as "the Merry widow of Windy Nook"
• Mary Evans Wilson (1866–1928), Boston civil rights activist
• Mary Ann Wilson (born 1936), American nurse and TV exercise presenter
• Mary Anne Wilson (1802–1867), English opera singer
• Mary Wilson, character in 1941 American comedy Angels with Broken Wings
• Mary Wilson, widow of Ralph Wilson and leader of the trust that holds ownership of the Buffalo Bills
• Mary Pat Wilson (born 1963), Puerto Rican Olympic skier
• Mary Wilson (politician) (active since 2018), Canadian politician
• Mary Florence Wilson (1884–1977), librarian for the League of Nations
• Mary Jane Wilson (1840–1916), founded the Catholic religious order, the Congregation of the Franciscan Sisters of Our Lady of Victories
• Mary Georgina Wade Wilson (1856–1939), Scottish artist
• Mary J. Wilson (1937–2020), African-American zookeeper
• Mary Wilson (figure skater) (born 1940), Australian figure skater
• Mary Louise Defender Wilson (born 1930), Native American storyteller, scholar and educator
• Mary Dunstan Wilson (1870–1959), Australian educator and nun
• Mary Street Wilson, American pastor, teacher, math professor, social justice activist, and candidate in the 2018 United States House of Representatives elections in Texas

• Mari Wilson (born 1954), English singer
• Meri Wilson (1949–2002), American singer
• Marie Wilson (disambiguation)