Nacy or NACY may refer to:
*
Carol A. Nacy (born 1948), microbiologist and immunologist
*
Richard R. Nacy (1895–1961), American politician
* Vegas Nacy, a member of the American rock band
The Clay People
The Clay People are an American heavy rock band based in Albany, New York. Singer Daniel Neet has been the only constant member throughout the band's history, providing lyrics and a frontman persona. Guitarist Brian McGarvey and drummer Dan Dinsm ...
* NACY, ship radio callsign of USS
''Freedom'' (IX-43), a schooner
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