A Loud House Christmas is a 2021 American live-action Christmas comedy adventure family television film based on the Nickelodeon animated series, The Loud House. The film is directed by Jonathan Judge, written by Liz Maccie, and stars Wolfgang Schaeffer, Jahzir Bruno, Lexi DiBenedetto, Dora Dolphin, Sophia Woodward, Catherine Ashmore Bradley, Morgan McGill, Aubin Bradley, Lexi Janicek, Mia Allan, Ella Allan, Charlotte Anne Tucker, Lainey Jane Knowles, and Muretta Moss while Catherine Taber and Brian Stepanek reprise their respective roles from the animated series as characters Katherine Mulligan and Lynn Loud Sr. The first live-action work and second film in the overall franchise after The Loud House Movie, it aired on Nickelodeon on November 26, 2021, and started streaming on Paramount+ the same day. The film also serves as the backdoor pilot of the sequel series, The Really Loud House.

A live-action television series sequel called The Really Loud House, featuring several cast members from the film, premiered November 3, 2022.