Mary Beth
Mary Beth may refer to:
- Mary Beth Canty, American politician
 - Mary Beth Carozza (born 1961), American politician
 - Mary Beth Decker, American cast member of Road Rules: South Pacific
 - Mary Beth Dolin (1936–1985), American-born Canadian politician
 - Mary Beth Dunnichay (born 1993), American platform diver
 - Mary Beth Edelson (1933–2021), American artist and pioneer of the feminist art movement
 - Mary Beth Fielder, American writer, director, and producer of television- and feature films
 - Mary Beth Harrell, American attorney
 - Mary Beth Harshbarger (born 1965), American woman who accidentally shot her husband
 - Mary Beth Hurt (born 1946), American retired stage- and screen actress
 - Mary Beth Iagorashvili (born 1974), American retired modern pentathlete
 - Mary Beth Imes (born 1948), American politician
 - Mary Beth Landrum, British-American statistician
 - Mary Beth Leatherdale, Canadian author and storyteller
 - Mary Beth Leonard (born 1962), American diplomat
 - Mary Beth Marley (born 1995), American pair skater
 - Mary Beth McKenzie (born 1946), American painter of contemporary figures
 - Mary Beth Palmer (1952–2019), American bridge player
 - Mary Beth Peil (born 1940), American actress and soprano
 - Mary Beth Rondeau (born 1956), Canadian former freestyle swimmer
 - Mary Beth Rosson, American director of graduate programs and professor
 - Mary Beth Rubens, Canadian film-, stage-, and television actress
 - Mary Beth Ruskai (1944–2023), American mathematical physicist and professor of mathematics
 - Mary Beth Tinker (born 1952), American free speech activist
 - Mary Beth Zimmerman (born 1960), American professional golfer