Ramon Berenguer III, Count of Provence

Ramon Berenguer III (IV) (c.1158 – 5 April 1181) was the count of Cerdanya (1162 – 1168), as Peter, and count of Provence (1173 – 1181).

He was the second son of Raymond Berengar IV of Barcelona and Petronilla of Aragón. He received Cerdanya, including Carcassonne and Narbonne, on his father's death, but relinquished it to his younger brother Sancho in 1168. He never did govern his inherited territories. In 1173, his elder brother, Alfonso, granted him Provence.

In 1176, he joined Sancho in conquering Nice from Genoa. He then ventured to war with the lords of Languedoc and the count of Toulouse. He was assassinated on 5 April 1181 by the men of Adhemar of Murviel near Montpellier. Provence was given to his brother Sancho and his widow, Richeza of Poland, married Raymond V of Toulouse.