The Boss Baby is a 2017 American animated comedy film produced by DreamWorks Animation and distributed by 20th Century Fox. Loosely based on the 2010 picture book of the same name by Marla Frazee, it was directed by Tom McGrath from a screenplay by Michael McCullers, and stars the voices of Alec Baldwin as the title character, along with Steve Buscemi, Jimmy Kimmel, Lisa Kudrow, Miles Bakshi, and Tobey Maguire. The first installment in The Boss Baby franchise, the plot follows a boy helping his baby brother who is a secret agent in the war for adults' love between babies and puppies.

The Boss Baby premiered at the Miami International Film Festival on March 12, 2017, and was released in the United States on March 31. The film received mixed reviews from critics upon release, who praised its animation and voice performances (especially that of Baldwin) but criticized the complicated plot, the pacing, and humor. It grossed $528 million worldwide against its $125 million budget. The film received Best Animated Feature nominations at the Academy Awards, Annie Awards, and Golden Globes.

It was one of three DreamWorks films to be the last to be distributed by 20th Century Fox alongside Trolls and Captain Underpants: The First Epic Movie. Following NBCUniversal's acquisition of DreamWorks Animation in 2016, Universal Pictures began distributing DreamWorks's films, starting with How to Train Your Dragon: The Hidden World (2019).

A Netflix television series, The Boss Baby: Back in Business, premiered on April 6, 2018, while a sequel film, The Boss Baby: Family Business, was released in theaters and on Peacock on July 2, 2021. Another Netflix television series, The Boss Baby: Back in the Crib, premiered on May 19, 2022.