Pak Kret is a city in Nonthaburi province, Thailand. It lies in the Central Thailand plains on the east bank of the lower Chao Phraya River, bordering Bangkok to the east, Mueang Nonthaburi district of Nonthaburi province to the south, and Pathum Thani province to the north. It is part of the Bangkok Metropolitan Region megalopolis. With a registered population of 190,272, Pak Kret is the third most populous city municipality in Thailand.