The Avery–Helm Historic District comprises a primarily residential portion of central Corvallis, Oregon, United States. Located on several of Corvallis's earliest plats, the 122 historic houses remaining in the district (as of 1999) present a window into the domestic aspects of the city's development from 1870 to 1949, providing a full industrial, socioeconomic, and architectural profile of that period. The district was added to the National Register of Historic Places in 2000.
