Si Racha (Thai: ศรีราชา; pronounced [sǐː rāː.t͡ɕʰāː]) is a subdistrict and town in Thailand on the east coast of the Gulf of Thailand, about 120 km southeast of Bangkok in Amphoe Si Racha, Chonburi Province. Si Racha is known as the provenance of the popular hot sauce, Sriracha, which is named after the town.