| State: | KY |
| Type: | KY |
| Route: | 186 |
| Map Custom: | yes |
| Map Notes: | KY 186 highlighted in red |
| Length Mi: | 3.0 |
| Length Round: | 1 |
| Direction A: | South |
| Terminus A: | Fork Ridge Road (former SR 132) at the Tennessee state line north of Motch, Tennessee |
| Junction: | in Middlesboro |
| Direction B: | North |
| Terminus B: | in Middlesboro |
| Counties: | Bell |
| Previous Type: | KY |
| Previous Route: | 185 |
| Next Type: | KY |
| Next Route: | 187 |
Kentucky Route 186 (KY 186) is a 3adj=midNaNadj=mid state highway in the U.S. state of Kentucky. The highway connects mostly rural areas of Bell County with Middlesboro.
KY 186 begins at the Tennessee state line southwest of Middlesboro, within Bell County, where the roadway continues as Fork Ridge Road. It travels to the northeast, paralleling Bennetts Fork, and curves to the east-northeast to enter Middlesboro. It crosses over some railroad tracks and Yellow Creek. The highway has an intersection with the southern terminus of KY 3502 (Winchester Avenue). At this intersection, KY 74 Truck begins traveling concurrently with KY 186. The two highways travel north-northwest for two blocks. They both end at an intersection with KY 74 (West Cumberland Avenue). At this intersection, the roadway continues as KY 1599 (Airport Road).