| Country: | IRL |
| Type: | R |
| Image Notes: | Pearse Street, Kinsale, on the R605 |
| Route: | 605 |
| Length Km: | 13.7 |
| Terminus A: | N71 at Main Street, Innishannon, County Cork |
| Junction: | |
| Terminus B: | R600 at Long Quay, Kinsale |
| Previous Type: | R |
| Previous Route: | 604 |
| Next Type: | R |
| Next Route: | 606 |
The R605 road is a regional road in County Cork, Ireland. It travels from the N71 road at Innishannon to Kinsale, via the village of Dunderrow. The road is 13.7km (08.5miles) long.