Mary Tate (1871–1930) was an African American evangelist.

Mary Tate may also refer to:

• Mary Tate, in the US comedy-drama TV series Studio 60 on the Sunset Strip, played by Kari Matchett
• Mary Tate, in the 1976 US comedy-drama film Stay Hungry, played by Sally Field
• Mary Tate, in the 1924 US silent society melodrama film Miami (1924 film), played by Hedda Hopper
• Mary Tate, in Da (play)

• Mary Tate Engels (born 1943), American writer