Nancy Davis (1921–2016) was an American actress and, as Nancy Reagan, First Lady of the United States.

Nancy Davis may also refer to:

• Nancy D. Griffeth (Nancy Davis Griffeth, born 1945), American computer scientist
• Jan Davis (Nancy Jan Davis, born 1953), American astronaut
• Nancy Davis (businesswoman) (born c. 1977), American investor and businesswoman

• Nan Davis (born 1962), American champion long-distance runner, a/k/a Nan Doak-Davis

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