The N-123 is a short highway in northern Spain which connects Benabarre to Barbastro.

National road N-123 shield}}
National road N-123
Carretera nacional N-123
Route information
Length35 km (22 mi)
Major junctions
FromBenabarre
ToBarbastro
Location
CountrySpain
Highway system

The road starts in Benabarre with a junction with the N-230. It heads west past the Embalse de Barasona north of the Sierra de Carrodilla. It then follows the Rio Cinca south before meeting the N-240 at Barbastro.