Myawaddy is a town in southeastern Myanmar, in Kayin State, close to the border with Thailand. Separated from the Thai border town of Mae Sot by the Moei River, the town is the most important trading point between Myanmar and Thailand. Myawaddy is 170 kilometres (110 mi) east of Mawlamyine, the fourth largest city of Myanmar, and 426 kilometres (265 mi) northwest of Bangkok, the capital of Thailand.