| State: | KY |
| Type: | KY |
| Route: | 737 |
| Alternate Name: | Lilac Road / Peter Cave Road |
| Map Custom: | yes |
| Map Notes: | KY 737 highlighted in red |
| Length Mi: | 9.513 |
| Direction A: | West |
| Terminus A: | in Leitchfield |
| Direction B: | East |
| Terminus B: | near McDaniels |
| Counties: | Grayson, Breckinridge |
| Previous Type: | KY |
| Previous Route: | 736 |
| Next Type: | KY |
| Next Route: | 738 |
Kentucky Route 737 (KY 737) is a 9.5adj=midNaNadj=mid state highway in northwestern Grayson and southern Breckinridge counties in west central Kentucky. The route runs from KY 259 in northern Leitchfield to the same route southeast of McDaniels via Lilac and Fisher. The route crosses Rough River Lake at the Grayson—Breckinridge county line.