The Arc de Triomf () is a triumphal arch in the city of Barcelona in Catalonia, Spain. It was built by architect Josep Vilaseca i Casanovas as the main access gate for the 1888 Barcelona World Fair. The arch crosses over the wide central promenade of the Passeig de Lluís Companys, leading to the Ciutadella Park that now occupies the site of the world fair. It is located at the northern end of the promenade, facing the Passeig de Sant Joan.