Pathum Thani (ปทุมธานี) is a city in the Bangkok Metropolitan Region in Thailand.
Pathum Thani has been a residential area for not less than 300 years since the reign of King Narai the Great of the Kingdom of Ayutthaya. In 1659, Mang Nanthamit gathered the Mon families in Martaban town to migrate from the Burmese war, and asked for protection from King Narai the Great. The king allowed the Mon families to settle in Sam Khok village, and the Sam Khok community has continuously developed. Then, during the reign of King Taksin the Great of Thon Buri, the Mons migrated from Burma to ask for the king’s protection for a second time. The king also allowed them to settle in Sam Khok. The last migration of the Mons was during the reign of King Rama II. It was a major migration from Martaban town to Thailand called "Mon Yai". The king allowed some of the Mons to settle at Sam Khok village as well. Therefore, from being a small-sized community, "Sam Khok village" has later become "Sam Khok town".