Chester "Chet" Hajduk (July 21, 1918 – July 4, 2006) was an American professional baseball player who played in one game as a pinch hitter for the Chicago White Sox of Major League Baseball in 1941. Hajduk grounded out in his only at-bat, which came against Cleveland Indians pitcher Al Milnar. Hajduk enlisted with the US Navy in early 1942. Hajduk played with the Great Lakes Naval Station team, and was a member of the Armed Services team that played the American League All-Stars in an exhibition/fund raising game at Municipal Stadium in Cleveland on the 7th of July, 1942. After the war Hajduk settled in Niles, Illinois, becoming a successful building contractor and raising a family.
Chet Hajduk
| Given name: | Chester Hajduk |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 6'0" / 195 lbs |
| Bats/Throws: | R / R |
| Born: | Jul 21, 1918 in Chicago, IL |
| Died: | Jul 4, 2006 in Chicago, IL (87 years old) |
| Debut: | Apr 16, 1941 |