The Arc de Triomf (Catalan pronunciation: [ˈaɾk də tɾiˈomf]) is a memorial arch in Barcelona, Catalonia, Spain.

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.

The opposite frieze contains a stone carving entitled Recompensa ("Recompense"), a work from Josep Llimona's earliest period, representing the granting of awards to the participants in the World Exposition.

The friezes along the sides of the arch include allegories of agriculture, industry and trade by Antoni Vilanova and of sciences and arts by Torquat Tassó.

The voussoirs of the arch are made of stone sculpted like a large laurel wreath that supports the coats of arms of the forty-nine provinces that formed the Kingdom of Spain in 1888.