Mary Knight may refer to:

• Mary Ann Knight (1776–1851), English painter
• Mary M. Knight (1854–1940), Washington state pioneer and educator
• Mary Knight (singer) (1631–?), English singer and poet

• May Night, an 1880 Russian comic opera
• Mary Nighy (born 1984), English actress and filmmaker

Topics referred to by the same term

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