The Pratt House is a historic house museum at 19 West Avenue in Essex, Connecticut. With a construction history of one ell possibly dating to the mid-17th century, it is one of Connecticut's oldest surviving buildings, owned for 2+1⁄2 centuries by a single family. Now owned by the local historical society, its displays exhibit Pratt family and regional history. The building was listed on the National Register of Historic Places in 1985.