R503 road
Bóthar R503
The R503 in Milestone, County Tipperary
Route information
Length	55 km (34 mi)
Location
Country	Ireland
Primary destinations	County Tipperary Thurles – leaves the R498 Ballycahill Upperchurch Milestone – joins the R497 Leaves the R497 Rearcross Newport – (R504) County Limerick Terminates at a roundabout junction with the N7 and the R445
Highway system
Roads in Ireland Motorways Primary Secondary Regional

The R503 road is a regional road in Ireland which runs east–west from Thurles, County Tipperary to the N7 west of Limerick City. The entire route is in County Tipperary and is 55 km (34 mi) long.