Chanthaburi (Thai: จันทบุรี; Chong: จันกะบูย[1] Chankabui; "Moon City") is a province (changwat) of Thailand. It is located in the east of Thailand, at the border to Battambang and Pailin of Cambodia and the shore to the Gulf of Thailand. The neighbouring provinces are Trat in the east and Rayong, Chonburi, Chachoengsao and Sa Kaeo.