Thelma C. Davidson Adair (born August 29, 1920) is a Presbyterian educator, church leader, advocate for human rights, peace and justice issues, writer, guest speaker, educator, and activist. She has been a resident of Harlem since 1942. She has been active with Church Women United, a Christian women's advocacy movement.She is an ordained Elder for the Mount Morris Ascension Presbyterian Church of New York City in Harlem. Adair was the moderator for the 1976 Assembly Presbyterian Church (U.S.A.). Her husband is the late Reverend Arthur Eugene Adair, s a minister of the church from 1943 to 1979, who died in 1979.