Prachya Pinkaew is a Thai film director, film producer and screenwriter. His films include Ong-Bak: Muay Thai Warrior and Tom-Yum-Goong, both martial arts films starring Tony Jaa.

Ong-Bak: Muay Thai Warrior, also known as Ong-Bak: The Thai Warrior or simply Ong-Bak, is a 2003 Thai martial arts film directed by Prachya Pinkaew and featured action choreography by Panna Rittikrai. It stars Tony Jaa in the lead role, alongside Petchtai Wongkamlao and Pumwaree Yodkamol.