Phitsanulok is a city, municipality, the capital and the largest populated place of the Thai province of Phitsanulok. It is also the headquarters of the Mueang Phitsanulok District. In 2022, it had a population of 62,000, making it the second–largest cities by population in the lower northern Thailand. The city is one of the centre of Thailand's tourism industry, and it is a historic city in the country.