| Jefferson County Courthouse Complex | |
| Nrhp Type: | hd |
| Nocat: | yes |
| Location: | SE corner of Arsenal and Sherman Sts., Watertown, New York |
| Coordinates: | 43.9753°N -75.9142°W |
| Mapframe: | yes |
| Mapframe-Marker: | building |
| Mapframe-Zoom: | 12 |
| Mapframe-Caption: | Interactive map showing the location for Jefferson County Courthouse Complex |
| Built: | 1862 |
| Architect: | White, Horatio Nelson; Kieff & Hose |
| Added: | June 07, 1974 |
| Refnum: | 74001248 |
Jefferson County Courthouse Complex is a courthouse complex and national historic district located at Watertown in Jefferson County, New York. The district includes three contributing buildings; the courthouse building (1862), Clerk's Office (1883–1884) and Surrogate's Office (1905). The courthouse building is a two-story, red brick structure with limestone trim. It features a three-story tower on the northwest corner. It was designed by architect Horatio Nelson White.[1]
It was listed on the National Register of Historic Places in 1974.