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 120km south-east 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.