| State: | KY |
| Type: | KY |
| Route: | 588 |
| Map Custom: | yes |
| Map Notes: | KY 588 highlighted in red |
| Length Mi: | 13.649 |
| Length Ref: | [1] |
| Direction A: | West |
| Terminus A: | in Blackey |
| Direction B: | East |
| Terminus B: | near Ice |
| Counties: | Letcher |
| Previous Type: | KY |
| Previous Route: | 587 |
| Next Type: | KY |
| Next Route: | 589 |
Kentucky Route 588 (KY 588) is a 13.7adj=midNaNadj=mid state highway in Letcher County, Kentucky, that runs from KY 7 in Blackey to KY 931 at Ice via Blackey and Roxana.