阿瓦查潘（西班牙语：Ahuachapán）位于萨尔瓦多西部，是阿瓦查潘省的首府。

Ahuachapán is a city and municipality and the capital of the Ahuachapán Department in western El Salvador. The municipality including the city covers an area of 244.84 km² and as of 2007 has a population of 110,511 people. Situated near the Guatemalan border, it is the westernmost city in the country and is the center of an agricultural region producing primarily coffee.