Jirō Noguchi (野口二郎, Noguchi Jirō) (January 6, 1920 – May 21, 2007) was a Japanese baseball pitcher and outfielder/infielder who played 13 seasons in the Japanese Baseball League and then Nippon Professional Baseball, from 1939 to 1952. A two-way player who really excelled at pitching, Noguchi was a six-time 20-game winner, a three-time 30-game winner, and once won 40 games in a season. His 1.96 career earned run average is second all-time. As a batter, Noguchi had a 31-game hitting streak, a Japanese professional baseball record which stood for 25 years. He was elected to the Japanese Baseball Hall of Fame in 1989.