Margaret June Blair (October 20, 1932 – December 4, 2022) was an American model and actress.

She was best known for being Playboy magazine's Playmate of the Month for its January 1957 issue[1] and for being part of the TV series The Adventures of Ozzie and Harriet as the wife of her real-life husband David Nelson.

Through the rest of the decade, she took supporting roles in feature films and guest-starred in series television, including two episodes, "Performance Under Fire" and "The Dead Ringer" of the 1960–61 syndicated western series Two Faces West.

The next year she broke off her engagement with Tempo and started dating Lindsay Crosby.

On May 21, 1961, Blair married David Nelson and joined the cast of The Adventures of Ozzie and Harriet.