R491 road
Bóthar R491
Approaching Shinrone from the west on the R491
Route information
Length	57 km (35 mi)
Location
Country	Ireland
Primary destinations	County Tipperary Nenagh - Starts at the R445 Crosses the Ollatrim River Passes over the Limerick-Ballybrophy railway line County Offaly Crosses the Ballyfinboy River County Tipperary Cloughjordan - (R490) County Offaly Shinrone - (R492) Crosses the Little Brosna River County Tipperary Passes over the Limerick-Ballybrophy railway line Terminates in Roscrea
Highway system
Roads in Ireland Motorways Primary Secondary Regional

The R491 is a regional road in Ireland linking Nenagh, County Tipperary via Cloughjordan and Shinrone to Roscrea, County Tipperary.^[1] The road is approximately 37 km (23 mi) long.