Chanthaburi (Thai: จันทบุรี, pronounced [tɕān.tʰá(ʔ).bū.rīː]) is a town (thesaban mueang) in the east of Thailand, on the banks of the Chanthaburi River. It is the capital of the Chanthaburi Province and the Mueang Chanthaburi District.
The town covers the two tambons Talat and Wat Mai of Mueang Chanthaburi District. As of 2005, the town had a population of 27,602. The town figures in the legacy of King Taksin. In 1981 the Thai cabinet passed a resolution to bestow on him the honorary title of the Great. When the Bank of Thailand issued the 12th Series of banknotes, called The Great Series, the monument of King Taksin the Great in the town's Tungnachaey recreational park appeared on the back of the 20 baht note issued 28 December 1981, the 214th anniversary of his coronation.