| Country: | IRL |
| Type: | R |
| Image Notes: | R606 road and bridge at Whitecastle Creek, a tributary of the River Bandon |
| Route: | 606 |
| Length Km: | 5.5 |
| Terminus A: | R605 at Ballythomas Cross, County Cork |
| Junction: |
|
| Terminus B: | R600 at Archdeacon Duggan Bridge |
| Previous Type: | R |
| Previous Route: | 605 |
| Next Type: | R |
| Next Route: | 607 |
The R606 road is a regional road in County Cork, Ireland. It travels from the R605 at Ballythomas Cross south to the R600 at Archdeacon Duggan Bridge near Kinsale. The road's southern section runs along Whitecastle Creek. The R606 is 5.5km (03.4miles) long.