| Peter | |
| Spouse: | Elizabeth de Courtenay |
| Issue: | Phillip de Courtenay Peter II de Courtenay Alice de Courtenay Eustachia de Courtenay Clémence de Courtenay Robert de Courtenay William de Courtenay Isabella de Courtenay Constance de Courtenay |
| House: | Courtenay |
| Father: | Louis VI of France |
| Mother: | Adélaide de Maurienne |
| Birth Date: | 1126 |
| Birth Place: | Reims |
| Death Date: | 10 April 1183 |
| Death Place: | Acre, Palestine |
| Burial Place: | Exeter Cathedral |
Peter I of Courtenay (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.
Rumour has it that he is buried in a tomb in the floor of Exeter Cathedral, next to Elizabeth; however, no physical evidence currently exists and the historians at the cathedral can find no documentation to support this rumour.
Peter I and his wife had ten children: