The Ligonier Historic District is a national historic district that is located in Ligonier, Westmoreland County, Pennsylvania.
It was added to the National Register of Historic Places in 1994.
This district encompasses 419 contributing buildings, two contributing sites, one contributing structure, and one contributing object that are located in the central business district and surrounding residential areas of Ligonier. They were built roughly between 1790 and 1944, and include a mix of residential, commercial, institutional, and industrial properties. Designed in a variety of popular architectural styles, including Federal and Late Victorian, notable buildings include the E.T. Weller House (1907), Ligonier Valley Railroad Station (1909), United Presbyterian (Pioneer) Church (1876), Covenant Presbyterian Church (1902), Heritage United Methodist Church (1903), and the former Municipal Building (1937). The district also includes the separately listed Fort Ligonier Site and demolished Ligonier Armory.