National Secondary Route 131, or just Route 131 (, or ) is a National Road Route of Costa Rica, located in the Alajuela and Puntarenas provinces.
In Alajuela province the route covers San Mateo canton (San Mateo, Jesús MarÃÂa, Labrador districts).
In Puntarenas province the route covers Esparza canton (EspÃÂritu Santo, San Juan Grande, Macacona, San Rafael districts).