Peter I (9 October 1328 – 17 January 1369) was King of Cyprus and titular King of Jerusalem from his father's abdication on 24 November 1358 until his death in 1369. He was invested as titular Count of Tripoli in 1346. As King of Cyprus, he had some military successes, but he was unable to complete many of his plans due to internal disputes that culminated in his assassination at the hands of three of his knights.