Salaya (Thai: ศาลายา, pronounced [sǎː.lāː.jāː]) is a tambon (sub-district) of Phutthamonthon district, Nakhon Pathom province, central Thailand, to the west of Bangkok and part of the Bangkok Metropolitan Region. In 2017 it had a population of 9,784 people, Salaya contains six mubans (villages).