Big Daddy is a 1999 American comedy film directed by Dennis Dugan and starring Adam Sandler & Dylan and Cole Sprouse . The film was released on June 25, 1999 by Columbia Pictures.

Sonny Koufax (Adam Sandler) is a carefree, unmotivated 32-year-old bachelor who lives in New York City and has declined to take on adult responsibility. He has earned a degree in law, but has chosen not to even try to attempt to take the bar exam, since he was awarded $200,000 in a vehicle accident years prior and lives off his restitution. He is employed, on a part-time basis only, as a toll booth attendant and he more or less just does this job just to get out of the apartment once in a while.

The film shows Sonny's friends, all former schoolmates, are "moving ahead" in their lives. His roommate, Kevin Gerrity (Jon Stewart), decides to ask Corinne (Leslie Mann) to marry him, which is another thing that irritates Sonny. Kevin decides to pop the question the day before he is leaving for China for his law firm. Two of his male friends from school, in contrast to their conduct in Sonny's experience while at school, are now revealed to be homosexual and in a committed domestic partnership. Sonny's girlfriend, Vanessa (Kristy Swanson), disgusted and perplexed at Sonny's contrasting and inconsistent conduct decides to end her romantic relationship with him—and also find a new much older man with more reliability.

Big Daddy may refer to: