| Country: | IRL |
| Type: | R |
| Route: | 427 |
| Image Notes: | R427 crossing the Grand Canal at Vicarstown |
| Length Km: | 21 |
| Destinations: |
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The R427 road is a regional road in Ireland, which runs southwest-northeast from the R425 in County Laois to the R417 in County Kildare.
En route it passes through Vicarstown and Stradbally and crosses the Grand Canal and the River Barrow. The route is 21km (13miles) long.