| Duke Maronic | |
| Birth Date: | 13 July 1921 |
| Birth Place: | Steelton, Pennsylvania, U.S. |
| Death Place: | Harrisburg, Pennsylvania, U.S. |
| Number: | 61, 67 |
| Position1: | Guard |
| Height Ft: | 5 |
| Height In: | 9 |
| Weight Lb: | 209 |
| College: | None |
| Playing Years1: | 1944–1950 |
| Playing Team1: | Philadelphia Eagles |
| Playing Years2: | 1951 |
| Playing Team2: | New York Giants |
| Career Highlights: |
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| Databasefootball: | MARONDUK01 |
Dusan J. "Duke" Maronic (July 13, 1921 – July 1, 1996)[1] was an American football offensive lineman who played eight seasons in the National Football League (NFL), mainly for the Philadelphia Eagles. He didn't play college football. In 1965, Maronic was also an assistant coach in the Atlantic Coast Football League with the Harrisburg Capitols, and then took over the head coaching job in 1966 through 1967.