Peter Ernest Naktenis (June 12, 1914 – August 1, 2007) was a pitcher in Major League Baseball who played for the Philadelphia Athletics (1936) and Cincinnati Reds (1939). Listed at 6 feet 1 inch (1.85 m), 185 pounds (84 kg), Naktenis batted and threw left-handed. He was born in Aberdeen, Washington.
In a two-season career, Naktenis posted a 0–1 record with 19 strikeouts and a 10.72 ERA in 10 games pitched.
An alumnus of Duke University, Naktenis died in Singer Island, Florida, at the age of 93. At the time of his death, he was recognized as one of the oldest living MLB players.