Diary of a Mad Housewife is a 1970 American comedy-drama film about a frustrated wife portrayed by Carrie Snodgress. Snodgress was nominated for the Academy Award for Best Actress and won a Golden Globe award in the same category. The film was adapted by Eleanor Perry from the 1967 novel by Sue Kaufman and directed by Perry's then-husband Frank Perry. The film co-stars Richard Benjamin and Frank Langella.

Caroline Louise Snodgress was an American actress. She is best remembered for her role in the film Diary of a Mad Housewife (1970), for which she was nominated for an Academy Award and a BAFTA Award as well as winning two Golden Globes and two Laurel Awards.