| Clay County Courthouse | |
| Coordinates: | 42.7797°N -96.9356°W |
| Mapframe: | yes |
| Mapframe-Marker: | building |
| Mapframe-Zoom: | 12 |
| Mapframe-Caption: | Interactive map showing the location of Clay County Courthouse |
| Built: | 1913 |
| Architect: | Lloyd D. Willis |
| Added: | August 18, 1983 |
| Area: | 4acres |
| Refnum: | 83003005 |
The Clay County Courthouse in Vermillion, South Dakota is a Classical Revival-style courthouse built in 1913. It was listed on the National Register of Historic Places in 1983.
It is a two-and-a-half-story building with stone veneer, on a raised basement.[1]