| State: | KY |
| Type: | KY |
| Route: | 393 |
| Maint: | KYTC |
| Map Custom: | yes |
| Map Notes: | KY 393 highlighted in red |
| Length Mi: | 10.056 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | near Centerfield |
| Junction: | near Centerfield near Buckner in Buckner |
| Direction B: | North |
| Terminus B: | near Buckner |
| Counties: | Oldham |
| Previous Type: | KY |
| Previous Route: | 392 |
| Next Type: | KY |
| Next Route: | 394 |
Kentucky Route 393 (KY 393) is a 5.325adj=midNaNadj=mid state highway in Oldham County, Kentucky, that runs from Kentucky Route 1818 southeast of Centerfield to U.S. Route 42 north of Buckner.
Its northern terminus is US 42. From there it continues 5.5miles south to a 0.04miles overlap with KY 146 in Buckner. It then splits south to continue for 2.5miles where it junctions KY 22 near Centerfield. It follows KY 22 east for 1miles until it splits to the south. It continues 1.5miles south and then terminates at Mount Zion Road. There are no low clearances or weight limits on this particular state route. As of 2009, this route has been relocated and improved. From the interchange of Interstate 71, it has been widened to three lanes with a center turn lane. It has been improved to the junction of State Route 22.