The Sala del Tricolore (Italian for "Room of the Tricolor") is an historical hall, currently the council chamber of the comune of Reggio Emilia, northern Italy. Designed by the architect Lodovico Bolognini, as the archive of the ducal family of Este, it is mostly known in connection with the creation of the Italian tricolor, from which it takes its name.
On December 27, 1796 the hall hosted the congress of delegates from Reggio, Modena, Bologna and Ferrara who, after proclaiming the Repubblica Cispadana, adopted on January 7, 1797 a horizontal tricolor of green, white and red (with red at the top) which is considered the first Italian tricolor.