Paul Leo Emile Calvert was a Canadian professional baseball player. He was a pitcher in Major League Baseball (MLB) for the Cleveland Indians, Washington Senators and Detroit Tigers over all or parts of seven seasons spanning 1942–51. Listed at 6 feet tall and 175 pounds (79 kg), he batted and threw right-handed. In 109 MLB games and 301⅔ innings pitched, Calvert allowed 345 hits and 158 bases on balls. He struck out 102, threw five complete games and earned five saves.