|To:||Blue Ball (N257198)|
|Distance:||76 km (47.2 miles)|
|Meets:||N63, R363, R446, M6, R444, N62, R437, N52|
|Route outline (key)|
The R357 is a long regional road running from a junction with the N63 one kilometre south of Athleague in County Roscommon to the N52 at Blue Ball in County Offaly by way of Ballinasloe in County Galway.