The following is a list of the villains in The Land Before Time franchise.
- Main article: Sharptooth
Sharpteeth are what characters in The Land Before Time call Theropod dinosaurs or other carnivorous creatures.
- Main article: Red Claw
Red Claw is an evil villainous male Tyrannosaurus Rex (Sharptooth) who has a distinctive scar that goes through his left eye, down to his left hand and claw. Land of the Lost had a Tyrannosaurus that was similar to Red Claw, named Scarface, who had a big scar down the right side of his face. Red Claw is the prominent antagonist in the TV series. According to Chomper and Ruby, Red Claw is the biggest and meanest Sharptooth of all. Voiced by Pete Sepenuk.
Main article: Meanest Sharptooth
According to legend, this Sharptooth was one of the largest and most vicious Sharpteeth ever known. It attempted to attack a herd of Longnecks (Brachiosaurus), but was defeated by Doc, the Lone Dinosaur, who killed it after a long battle by knocking it off a cliff. It is said that the "stone teeth" around the neck of Saurus Rock originate from this Sharptooth.
- Main article: Fast Biters
Fast Biters is the Land Before Time name for Velociraptors, Deinonychus and Dromaeosaurus. As well as the appearances below they appear in a flashback in The Land Before Time VII: The Stone of Cold Fire (Deinonychus) killing Pterano's herd and cameo appearances in the introductions of The Land Before Time XIII: The Wisdom of Friends (Velociraptors running from a T. rex) and The Land Before Time III: The Time of the Great Giving (Dromaeosaurus attacking a Chasmosaurus).
Screech & Thud
Main Articles: Screech and Thud
Screech and Thud are Red Claw's Utahraptors henchmen. Chomper and Ruby have said that Red Claw is always nearby whenever these two are about.
Ozzy and Strut
- Main article: Ozzy and Strut
Main Article: Pterano
He is a Pteranodon, called a Flyer in the films and TV series, and is Petrie's uncle. He is also Petrie's mother's brother. Though he is ambitions and can be arrogant, in the end he is shown to have changed his ways and learns to care for others, rescuing Ducky from falling from a cliff during a volcanic eruption.
Rinkus and Sierra
- Main article: Rinkus & Sierra
Rinkus and Sierra are Pterano's henchmen. At first they were his friends, but time proves that they are far more sinister than he is, and very willing to dispose of him in order to reach their own goals.