Phichit is a town (thesaban mueang) in northern Thailand, capital of the Phichit Province. It covers the whole tambon Nai Mueang of Mueang Phichit district, an area of 12.017 km². As of 2005 it has a population of 23,791.

The old town of Phichit was established in 1058 by Phraya Kotabongthevaraja, and was first part of the Sukhothai kingdom, and later of Ayutthaya. The name of the main city changed several times. At first it was called Sra Luang (city of the royal pond), in Ayutthaya times it was called Okhaburi (city in the swamp), and then finally Phichit (beautiful city).

Phichit is located where the Wat Ta Yom River, the next major tributary of the Nan south of the Wang Thong River drains into the Nan River from its source to the northeast (in the Noen Maprang District, of Phitsanulok Province).