| Country: | IRL |
| Type: | R |
| Image Notes: | Mullinahone, County Tipperary, on the R690 |
| Route: | 690 |
| Length Km: | 29.6 |
| Terminus A: | R689 at Tranagh, County Tipperary |
| Junction: |
|
| Terminus B: | N76 at Ninemilehouse |
| Previous Type: | R |
| Previous Route: | 689 |
| Next Type: | R |
| Next Route: | 691 |
The R690 road is a regional road in County Tipperary, Ireland. It travels from the R689 road to the N76 at Ninemilehouse, via the village of Mullinahone. The road is 29.6km (18.4miles) long.