National Route 148 (Spanish: Ruta Nacional 148) is a short highway located in the central region of Argentina.

Its kilometer 0 is located at the entrance to the city of Villa Dolores, more precisely at the Melchor Martino roundabout, on the end of the Provincial Route E88 that connects the towns of Las Tapias with the aforementioned Villa Dolores, in the west of the Córdoba Province, at the southern end of the Valle de Traslasierra, and ends when it reaches the border with the neighboring San Luis Province.

The section to the south of Nueva Galia, in San Luis, marked in purple and unpaved, passed to provincial jurisdiction through National Decree 1595 of 1979,[2] except for the section between km 263.87 and 296.78 that corresponded to the overlap with National Route 152.

By agreement signed on 4 September 2001 between the Ministry of Infrastructure and Housing and the Government of the Province of San Luis, National Route 148 was transferred in the section between the junction with National Route 188 and the border with the Province of Córdoba, marked in green on the map.

[4] In 2001, Governor Adolfo Rodríguez Saá put out to tender the work to convert Route 148 into a highway through Plan Mil, which will allow the construction of another 175 kilometers of highway between the cities of Villa Mercedes and Merlo, on the border with Córdoba.