Rivarolo del Re ed Uniti (Casalasco-Viadanese: ) is a comune (municipality) in the Province of Cremona in the Italian region Lombardy, located about southeast of Milan and about southeast of Cremona.
Rivarolo del Re ed Uniti borders the following municipalities: Casalmaggiore, Casteldidone, Rivarolo Mantovano, Sabbioneta, Spineda.