Cheaper by the Dozen 2 is a 2005 American family comedy film directed by Adam Shankman. It is the sequel to Cheaper by the Dozen (2003) and stars Steve Martin, Bonnie Hunt, Tom Welling, Piper Perabo, and Hilary Duff with Kevin G. Schmidt, Alyson Stoner, Jacob Smith, Forrest Landis, Liliana Mumy, Morgan York, Blake Woodruff, and Brent and Shane Kinsman reprising their roles as members of the 12-child Baker family, alongside Eugene Levy, Carmen Electra, Shawn Roberts, Jaime King, Robbie Amell, Taylor Lautner, and Jonathan Bennett as new characters. It tells the story of the Baker family as they go on a vacation and contend with a rival family, the Murtaughs.

The film was released in the United States on December 21, 2005. It received negative reviews from critics and grossed $135 million worldwide.