| O. A. Hankner | |
| Birth Date: | 18 June 1908 |
| Birth Place: | Tripoli, Iowa, U.S. |
| Death Place: | Champaign, Illinois, U.S. |
| Alma Mater: | University of Illinois |
| Coach Sport1: | Football |
| Coach Years2: | 1938 |
| Coach Team2: | Eureka |
| Coach Years3: | 1939 |
| Coach Team3: | East Carolina |
| Coach Sport4: | Basketball |
| Coach Years5: | 1937–1939 |
| Coach Team5: | Eureka |
| Overall Record: | 1–14 (football) 13–18 (basketball) |
Oscar August Hankner (June 18, 1908 – October 3, 1946) was an American football and basketball coach. He served as the head football coach at Eureka College in Eureka, Illinois in 1938 and at East Carolina Teachers College—now known as East Carolina University–in 1939, compiling a career college football coaching record 1–14.[1] He was also the head basketball coach at Eureka from 1937 to 1939, tallying a mark of 13–18.
Hanker was born in Tripoli, Iowa. He died on October 3, 1946, at Burnham Hospital in Champaign, Illinois, after suffering from an intestinal obstruction.[2]