Hagar Wilde (July 7, 1905 – September 25, 1971) was an American novelist, short story writer, playwright, and screenwriter from the 1930s through the 1950s.

She is perhaps best known for the screenplays for Bringing Up Baby (1938) and I Was a Male War Bride (1949), two Howard Hawks films, both starring Cary Grant.

[1] Wilde was a prolific young short story writer[2] and debut novelist[3] when she was hired by billionaire Howard Hughes in 1931, to write dialogue for The Age for Love, starring Billie Dove.

She also co-wrote the screenplay for The Unseen (1945), with Raymond Chandler, based on the novel Midnight House by Ethel Lina White.

Her first stage success was a "taut little horror drama"[8] titled Guest in the House (1942); she co-wrote the play with Dale Eunson, and it was adapted into a film in 1944.