Walter John "Monk" Dubiel (February 12, 1918 – October 23, 1969) was an American professional baseball right-handed pitcher, who played in Major League Baseball (MLB) for the New York Yankees, Philadelphia Phillies, and Chicago Cubs. He stood 6 feet (1.83 m) tall and weighed 190 pounds (86 kg). Dubiel pitched in 187 big league games, 97 as a starting pitcher, and allowed 854 hits, and 349 bases on balls, in 8791⁄3 innings pitched. He struck out 289 and recorded 11 career saves. On October 23, 1969, Dubiel died in Hartford.