| State: | SD |
| Type: | SD |
| Route: | 314 |
| Length Mi: | 3.751 |
| Section: | 232 |
| Direction A: | West |
| Terminus A: | west of Yankton |
| Direction B: | East |
| Terminus B: | West 11th Street in Yankton |
| Counties: | Yankton |
| Previous Type: | SD |
| Previous Route: | 298 |
| Next Type: | SD |
| Next Route: | 324 |
South Dakota Highway 314 (SD 314) is a 3.751adj=midNaNadj=mid state highway in southwestern Yankton County, South Dakota, United States, that runs from SD 50 to the western city limits of Yankton.
SD 314 is maintained by SDDOT. In 2012, the traffic on the route was measured in average annual daily traffic. SD 314 had an average of 1325 vehicles. SD 314 begins at an intersection with SD 50, west of Yankton, but about 0.6miles east of SD 50's junction with SD 153. From its western terminus SR 314 heads southeast through flat farmland to cross Deer Boulevard. After continuing southeast for total of 3.751miles SD 314 reaches its eastern terminus at an intersection with West 11th Street at the western city limits of Yankton.[1]