Maha Sawat (Thai: มหาสวัสดิ์, pronounced [mā.hǎː sā.wàt]) is one of three subdistricts (tambon) of Phutthamonthon district, Nakhon Pathom province, central Thailand.

[2] A 28 km (17.4 mi) long canal dug during the King Rama IV's reign bridging Khlong Bangkok Noi in Bangkok and the Tha Chin river in Nakhon Pathom province.

Throughout the canal, there are 7 pavilions (sala) on both sides, about 4 km (2.5 mi) apart.

The last pavilion was the "Sala Din" (used for burial of workers who died during the canal digging).

[3] Khlong Maha Sawat and Sala Din is currently another important cultural and agritourism destination of Nakhon Pathom and the outskirts of Bangkok.