The N-1 (formerly designated as N-I) was the main road from Madrid to France in Spain.

[citation needed] From Burgos to Miranda de Ebro the N-1 still exists, running parallel to the (formerly tolled) Autopista AP-1.

Current roads using the alignment of the former N-I include the N-102 [es][3] and N-104 [es],[4] the western and eastern access roads to Vitoria-Gasteiz.

In the province of Gipuzkoa, the road is still signed as N-I despite being an autovía.

[5] The N-I in Gipuzkoa is tolled for heavy goods vehicles.