佩斯（匈牙利语：Pest）是匈牙利首都布达佩斯的东部地区，约占城市面积的三分之二，与城市的另一部分布达隔河相望。

布达佩斯内城、匈牙利国会大厦、英雄广场和安德拉希大道均位于佩斯。

Pest (Hungarian pronunciation: [ˈpɛʃt]) is the eastern, mostly flat part of Budapest, Hungary, comprising about two thirds of the city's territory. It is separated from Buda, the other part of Budapest, by the Danube River. Among its most notable parts are the Inner City, including the Hungarian Parliament, Heroes' Square and Andrássy Avenue. In colloquial Hungarian, "Pest" is often used for the whole capital of Budapest.