Siamosaurus (meaning "Siamese lizard") is a genus of theropod dinosaur from Barremian Sao Khua Formation in Thailand. The animal is a tooth taxon and therefore details on its size or classification are not certain. The type species, Siamosaurus suteethorni, was formally described by Buffetaut and Ingavat in 1986.
- It plays as Baryonyx in Monsoon Age Series
- It plays as stefano in Madagascar Series (NatureRules1 and Samwei1234 Version)
- It played as Mojo Jojo in The Powerpuff Carnosaurs, The Powerpuff Carnosaurs Movie, and The Powerpuff Carnosaurs (2016)