Walter John "Monk" Dubiel (February 12, 1918 – October 23, 1969) was an American professional baseball player, a right-handed pitcher in the Major Leagues for the New York Yankees, Philadelphia Phillies and Chicago Cubs. The native and lifelong resident of Hartford, Connecticut, stood 6 feet (1.8 m) tall and weighed 190 pounds (86 kg).
Dubiel pitched for 14 seasons (1941–1954) in professional ball and spent five full seasons and part of two others in the Majors between 1944 and 1952. His best season was his rookie 1944 campaign for Yankees. He spilt 26 decisions, but logged 19 complete games, three shutouts and 232 innings pitched, with an earned run average of 3.38. Sent to the minors for the first two seasons immediately after the end of World War II, he resurfaced in the National League in 1948 as a "swing man" — working as a starting pitcher and a reliever — for the Phillies. After the 1948 campaign, Dubiel was traded to the Cubs in a four-player swap that brought first baseman Eddie Waitkus to the Phils. Although Waitkus would miss much of the 1949 season after being shot by an obsessed fan, he would play a key role on the 1950 "Whiz Kids".