Mary might refer to:.
- Mary Magdalene, who may have done sexy things with Jesus
- Mary (Mother of Jesus), who somehow got pregnant.
- Mary Baker Eddy, who, much like L. Ron Hubbard, started a religious cult.
- Mary Lou Bruner — batshit crazy Texas politician
- Mary Celeste — a merchant ship that showed up with its crew missing
- Mary Landrieu — former Senator from Louisiana
- Mary Marshall — Canadian medium with a bad sinus problem
- Mary Stewart Relfe, who made a load of silly prophecies.
- Mary Whitehouse — Christian pro-censorship campaigner