Untamed Youth is a 1957 American teen film directed by Howard W. Koch, written by John C. Higgins and Stephen Longstreet, and starring Mamie Van Doren and Lori Nelson as two starstruck sisters who are sentenced to farm labor.

Sisters Penny and Jane Lowe are arrested for hitchhiking and skinny-dipping and are sentenced to work on a rural Texas farm for a corrupt agricultural magnate named Russ Tropp.

Through dating the judge, Tropp ensures that all delinquents and rule breakers are ordered to work off their sentence at his farm, therefore giving him a stable amount of cheap labor and allowing him to undercut all competition he faces.

According to a contemporary review for The New York Times, the film was "a mélange of mediocre melodrama" that sought to "portray sisters who run afoul of the law and are sent to a prison farm populated almost entirely by rock 'n' roll addicts...Call it a fate almost worse than death," and noted that "the amazingly endowed Miss Van Doren [...] renders a variety of torrid gyrations that are guaranteed to keep any red-blooded American boy awake.

-- that veers between laughable dramatics and pure 50s exploitation," that the characters "both male and female alike are stereotyped," that Van Doren "is unconvincing in almost every scene," "bounces merrily whenever she walks" and that her dancing is "straight from the burlesque stage," and noted the "stultifying finale.