Ratchaburi or Rat Buri (Thai: ราชบุรี), is one of the western provinces (changwat) of Thailand. Neighbouring provinces are (from north clockwise) Kanchanaburi, Nakhon Pathom, Samut Sakhon, Samut Songkhram and Phetchaburi. In the west it borders Tanintharyi Division of Myanmar.
Ratchaburi is 80 kilometres west of Bangkok and borders Burma to the west with the Tanaosi Range as a natural borderline.[1] The Mae Klong River flows through the centre of Ratchaburi town.