Mary Elizabeth has been the given name of many famous women. This name was used in reference to the Visitation of Saint Mary to Saint Elizabeth.
People
Mary Elizabeth Barber (1818–1899), British natural historian
Mary Elizabeth Bayer (1925–2005), Canadian civil servant, educator, and community activist
Mary Elizabeth Biden (1894–1943), grandmother of Joe Biden
Mary Elizabeth Bliss (1824–1909), daughter of Zachary Taylor
Mary Elizabeth Braddon (1835–1915), British novelist
Mary Elizabeth Coleridge (1861–1907), British novelist and poet
Mary Elizabeth Counselman (1911–1995), American short story writer and poet
Mary Elizabeth Donaldson (born 1972), Queen of Denmark
Mary Elizabeth Ellis (born 1979), American actress and screenwriter
Mary Elizabeth Flores (born 1973), Honduran journalist, lawyer, politician, and diplomat
Mary Elizabeth "Tipper" Gore (born 1948), former Second Lady of the United States
Mary Elizabeth Greear, birth name of Joan Barclay (1914–2002), American film actress
Mary Elizabeth Lease (1850–1933), American activist
Mary Elizabeth Maude Chomley (1871–1960), Australian charity worker, arts patron, and feminist
Mary Elizabeth Nelson, a wife of Brigham Young
Mary Elizabeth Parker Bouligny (1839–1908), American socialite and author
Mary Elizabeth Parmenter, English mother of criminal Dick Turpin
Mary Elizabeth Riggs, birth name of Evelyn Brent (1895–1975), American film- and stage actress
Mary Elizabeth Rollins, another wife of Brigham Young
Mary Elizabeth Mastrantonio (born 1958), American actress
Mary Elizabeth McDonough (born 1961), American actress
Mary Elizabeth McGlynn (born 1966), American voice actress
Mary Elizabeth Richardson, birth name of Mollie Tripe (1870–1939), New Zealand artist and art teacher
Mary Elizabeth "Liz" Truss (born 1975), former Prime Minister of the United Kingdom
Mary Elizabeth "Liz" Twist (born 1956), British politician
Mary Elizabeth Williams, American columnist
Mary Elizabeth Wilson (1889–1962), English murderer
Mary Elizabeth Winstead (born 1984), American actress
Fictional characters
Mary Elizabeth Bartowski, in the US action comedy spy drama TV series Chuck, played by Linda Hamilton