Mary Bailey may refer to:

• Mary Bailey (aviator) (1890–1960), British aviator
• Mary Barbara Bailey (1910–2003), British Roman Catholic
• Mary Creighton Bailey (1913–2008), British classics scholar and educator
• Mary Johnson Bailey Lincoln (1844–1921), American teacher and cookbook author

• Mary Bailey (Jericho), in the US post-apocalyptic action drama TV series Jericho, played by Clare Carey
• Mary Bailey (The Simpsons), in the US animated sitcom The Simpsons, voiced by Maggie Roswell and Tress MacNeille
• Mary Hatch Bailey, in the 1946 US Christmas supernatural drama film It's a Wonderful Life, played by Donna Reed (adult) and Jean Gale (child)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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