佩斯州（匈牙利语：Pest megye）是匈牙利中部的一个州，位于首都布达佩斯周围，北界斯洛伐克。面积6,394平方公里，人口1,077,300（2004年）。首府布达佩斯。

下设1市、40镇、145村。

Pest County (Hungarian pronunciation: [ˈpɛʃt]) is a county (megye) in central Hungary. It covers an area of 6,393.14 square kilometres (2,468.41 sq mi), and has a population of 1,213,090 (2009). It surrounds the national capital Budapest and the majority of the county's population (65.2%/790,995 in 2009) live in the suburbs of Budapest. It shares borders with Slovakia and the Hungarian counties Nógrád, Heves, Jász-Nagykun-Szolnok, Bács-Kiskun, Fejér and Komárom-Esztergom. The River Danube flows through the county. The capital of Pest County is Budapest (administratively separate), but it is planned to completely separate the capital from the county at least until 2020, as it loses catch-up aids from the European Union because of the high development of Budapest.