Carrer de Balmes (Catalan pronunciation: [kəˈre ðə ˈβalməs]), named after the Catalan philosopher and ecclesiastic Jaume Balmes, is one of the most important avenues in Barcelona (Catalonia, Spain). It was devised in 1859 as part of Ildefons Cerdà urban plan. Balmes is along the longest road stretching from the sea towards the mountainside. It starts in the crossing of and streets and crosses the Eixample and Sant Gervasi districts, ending in , by and Tramvia Blau. The Sant Gervasi part of the street was constructed after 1908.