| Chet Hajduk | |
| Position: | Pinch hitter |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | July 21, 1918 |
| Birth Place: | Chicago, Illinois, U.S. |
| Death Place: | Chicago, Illinois, U.S. |
| Debutleague: | MLB |
| Debutdate: | April 16 |
| Debutyear: | 1941 |
| Debutteam: | Chicago White Sox |
| Finalleague: | MLB |
| Finaldate: | April 16 |
| Finalyear: | 1941 |
| Finalteam: | Chicago White Sox |
| Statleague: | MLB |
| Stat1label: | Games |
| Stat1value: | 1 |
| Stat2label: | At bats |
| Stat2value: | 1 |
| Stat3label: | Hits |
| Stat3value: | 0 |
| Teams: | |
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.[1] Hajduk enlisted with the US Navy in early 1942.[2] 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.[3] After the war Hajduk settled in Niles, Illinois, becoming a successful building contractor and raising a family.