Sriracha takes its name from Si Racha, a coastal town in Thailand, but you won’t find many green-topped sriracha bottles lining Thai restaurants. Tran created his version of sriracha to be used as a dipping sauce for pho, but it won’t be found at any pho restaurants in Ho Chi Minh City, either. Sriracha, or at least what we popularly know as sriracha, is quintessentially American, in birthplace and in spirit.
Sri Racha ain’t so sri. The whole article here.