Deidre is a feminine given name and variant of the given name Deirdre, derived from Deirdre, a tragic heroine in Irish mythology. Notable people with the name include:

Deidre Airey (1926–2002), ceramic artist from New Zealand
Deidre Anderson (born 1957), Australian academic administrator, sports executive, sports transitions specialist and coach
Deidré Baartman (born 1991), South African politician
Deidre Behar (born 1988), American producer
Deidre Brock (born 1961), Australian-born Scottish politician
Deidre Brown (born 1970), New Zealand art historian and architectural lecturer
Deidre Davis Butler (1955–2020), American disability rights activist and federal official
Deidre Carter, South African politician
Deidre Catt (born 1940), British tennis player
Deidre Downs (born 1980), Miss America 2005
Deidre Freeman (born 1988), American diver
Deidre Gillard-Rowlings, Canadian actress
Deidre Goodwin (born 1969), American actress
Deidre Hall (born 1947), American actress
Deidre Henderson (born 1974), American politician
Deidre Holland (born 1966), Dutch porn star
Deidre Hunter, American astronomer
Deidre Kitcher, Australian film producer
Deidre McCalla, American singer-songwriter
Deidre Palmer (born 1955/56), Australian counsellor, theologian and social worker
Deidre Rubenstein (born 1948), Australian television and theatre actress
Deidre Sanders (born 1945), British agony aunt and writer of the Dear Deidre column in The Sun
Deidre Watkinson (born 1941), English athlete
Deidre Willmott, Australian government official

See also