Gustave "Gust" Constantine Zarnas (December 16, 1913 – December 26, 2000) was a college football All-American and professional football player. He was selected in the fifth round of the 1938 NFL draft.^[1] He is distinguished as being the first Greek to play in the National Football League (NFL).

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Born in Icaria, Greece, Zarnas came to America with his parents. He played the guard position at the Ohio State University from 1935 to 1937 and received All-American recognition his last year as a Buckeye. At 5 ft 10 in (1.78 m), 220 lbs., Zarnas played professionally in the NFL for the Chicago Bears and Green Bay Packers from 1938 to 1940, and enlisted into the United States Navy becoming a lieutenant during World War II. He was inducted into the College Football Hall of Fame in 1975.