Bachelor Flat is a 1962 American DeLuxe Color comedy film directed by Frank Tashlin and starring Tuesday Weld, Richard Beymer, Terry-Thomas, and Celeste Holm.

Intertwined in the story is Mike's persistent dachshund, determined to bury the professor's prize possession of a rare dinosaur bone.

In October 1960, 20th Century Fox's Robert Goldstein announced he had bought the screen rights to a British stage comedy, Libby by Budd Grossman.

However, they say "neither Weld nor Beymer seems comfortably at home in farce, and the strain often shows through", and that Celeste Holm is "stuck regrettably in a rather bland role".

He concludes that "viewers with a tolerance for brash vulgarity and a fitful pace" will most likely show "astonishment, resignation, and, eventually, mild amusement.