Michael Edward Ulicny (September 28, 1917 – September 22, 2005), nicknamed "Slugs",^[1] was an American professional baseball catcher. He played in Major League Baseball (MLB) for the Boston Braves in 1945. Listed at 5 feet 9 inches (1.75 m) and 165 pounds (75 kg), he was a native of Greenwald, Pennsylvania.^[2]

Ulicny's professional baseball career spanned 1938 to 1950; he appeared in a total of 886 minor league games.^[3] He is one of many ballplayers who only appeared in the major leagues during World War II. He hit well in the 11 games he played for the Boston Braves, going 7-for-18, a .389 batting average. He had one home run, four runs batted in (RBIs), four runs scored, and a .611 slugging percentage. He was mainly used as a pinch-hitter, appearing in only four games as a catcher.^[4] His uncommon last name sometimes appeared in newspaper box scores of the era as "Ulisney".^[5][6] In 1950, he served as player-manager of the minor league Niagara Falls Citizens.^[3][7]

Ulicny served in the United States Army during World War II,^[8] including in 1943 when he was stationed at Fort Dix (New Jersey) and Camp Gordon Johnston (Florida) and did not play baseball professionally.^[9][3] He died at the age of 87 in New Smyrna Beach, Florida.^[2] He is buried at Deltona Memorial Gardens in Orange City, Florida.^[8]