The N63 road is a national secondary road in Ireland. It links the M17, 10 km (6.2 mi) northeast of Galway, to the N5 national primary road in Longford.

En route it passes through Mountbellew, Roscommon Town, crosses the River Shannon at Lanesborough.

The road is 96.393 km (59.896 mi) long.

• Roads Act 1993 (Classification of National Roads) (Amendment) Order 2018 – Department of Transport