Three Men and a Baby is a 1987 American comedy film directed by Leonard Nimoy. It stars Tom Selleck, Steve Guttenberg, and Ted Danson as three bachelors as they attempt to adapt their lives to de facto fatherhood with the arrival of the love child of one of the men. The script was based on the 1985 French film Trois hommes et un couffin (Three Men and a Cradle).

The film was the biggest American box office hit of that year, surpassing Fatal Attraction and eventually grossing $167 million in the United States and Canada and $240 million worldwide. The film won the 1988 People's Choice Award for Favorite Comedy Motion Picture. The success of the film launched a franchise.