| State: | KY |
| Type: | KY |
| Route: | 1631 |
| Alternate Name: | Crittenden Drive |
| Maint: | KYTC |
| Map Custom: | yes |
| Map Notes: | KY 1631 highlighted in red |
| Length Mi: | 1.582 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | in Louisville |
| Junction: |
|
| Direction B: | North |
| Terminus B: | in Louisville |
| Counties: | Jefferson |
| Previous Type: | KY |
| Previous Route: | 1630 |
| Next Type: | KY |
| Next Route: | 1632 |
Kentucky Route 1631 (KY 1631) is a 1.582adj=midNaNadj=mid state highway in the U.S. State of Kentucky. Its southern terminus is at Interstate 264 (I-264) in Louisville and its northern terminus is at U.S. Route 60 Alternate (US 60 Alt.) in Louisville.