| Avery–Helm Historic District | |
| Nrhp Type: | hd |
| District Map: | Avery–Helm HD boundary map.png |
| Map Width: | 235 |
| Map Alt: | Map of district boundaries. |
| Coordinates: | 44.559°N -123.266°W |
| Location: | Corvallis, Oregon, roughly bounded by SW 2nd, 6th, and Jefferson Streets, and the Highway 20/34 Bypass |
| Built: | ca. 1870 – 1949 |
| Architecture: | Bungalow, vernacular, Italianate, Gothic Revival, Queen Anne, Colonial Revival, American Foursquare, others |
| Added: | January 27, 2000 |
| Refnum: | 99001716 |
| Nocat: | yes |
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.[1] The district was added to the National Register of Historic Places in 2000.[2]