U.S. Post Office and Courthouse | |
 Front and northern side of the courthouse | |
   | |
| Location | 1300 W. Harrison St., Fort Wayne, Indiana |
|---|---|
| Coordinates | 41°4′26″N 85°8′26″W / 41.07389°N 85.14056°W |
| Area | 2.5 acres (1.0 ha) |
| Built | 1932 |
| Architect | Mahurin, Guy; et al. |
| Architectural style | Art Deco, Starved Classicism |
| NRHP reference No. | 06000125[1] |
| Added to NRHP | March 15, 2006 |
The E. Ross Adair Federal Building and U.S. Courthouse is a historic post office, courthouse, and federal office building located at Fort Wayne in Allen County, Indiana. The building is a courthouse of the United States District Court for the Northern District of Indiana. It was listed on the National Register of Historic Places in 2006 as U.S. Post Office and Courthouse.