Peter I of Courtenay (September 1126 – 10 April 1183) was the sixth son of Louis VI of France and his second wife, Adélaide de Maurienne. He was the father of the Latin Emperor Peter II of Courtenay. Peter was born in France and died in Palestine. In about 1150, he married Elizabeth de Courtenay (1127 – September 1205), the daughter of Renaud de Courtenay and Hawise du Donjon, thus starting the Capetian line of the House of Courtenay.