| Oswego County Courthouse | |
| Location: | East Bridge St., Oswego, New York |
| Coordinates: | 43.4572°N -76.5061°W |
| Mapframe: | yes |
| Mapframe-Marker: | building |
| Mapframe-Zoom: | 12 |
| Mapframe-Caption: | Interactive map showing the location for Oswego County Courthouse |
| Built: | 1859 |
| Architect: | White, Horatio Nelson; Smith & Ratigan et al. |
| Architecture: | Early Renaissance Revival |
| Added: | December 07, 2000 |
| Area: | less than one acre |
| Refnum: | 00001418 |
Oswego County Courthouse is a historic courthouse located at Oswego in Oswego County, New York. It was built in 1859-1860 and altered in 1891 and again in 1962. The two story building rises above a cruciform plan and is constructed of load bearing masonry walls faced with smooth ashlar limestone. It features a portico surmounted by a domed cupola. It was designed by architect Horatio Nelson White (1814–1892).[1]
It was listed on the National Register of Historic Places in 2000.