John Barney Wyrostek (July 12, 1919 – December 12, 1986) was an American professional baseball player. He played all or part of eleven seasons in the Major League Baseball between 1942 and 1954 primarily as an outfielder, most often in right or center field. He batted left-handed, threw right-handed, and was listed as 6 feet 2 inches (1.88 m) tall and 180 pounds (82 kg). In 1950, Wyrostek hit .285 with 8 homers and 76 RBIs with the Reds. On September 4 of that year, Wyrostek drove in eight of the Reds' 13 runs in a doubleheader sweep of the visiting Cardinals.