Life-Size is a 2000 American fantasy comedy television film directed by Mark Rosman and starring Lindsay Lohan and Tyra Banks. It originally premiered on March 5, 2000, on ABC as part of The Wonderful World of Disney block. Lohan portrays a young girl who casts a magic spell to bring back her deceased mother and, instead, accidentally brings to life her fashion doll, played by Banks. The film then follows their relationship as the doll creates havoc while trying to fit into the real world.

Life-Size was popular among its demographic, developing a cult following that frequently revisited and reexamined it in the years following its release, and generated a sequel 18 years after the original broadcast. It is considered a didactic children's film that set the tone for doll-inspired movies and is perceived by many fans as "the first live-action Barbie movie" due to the similarities between the two dolls despite not having the rights to the official character.

The sequel, titled Life-Size 2: A Christmas Eve, premiered on December 2, 2018 on Freeform with Banks reprising her role. In 2020, Banks announced another sequel was in the works.