| August Prosenik | |
| Birth Date: | 25 April 1916[1] |
| Birth Place: | Obrežje, Brežice, Austria-Hungary |
| Death Place: | Zagreb, SFR Yugoslavia |
| Amateuryears1: | 1936–40 |
| Amateurteam1: | Sokol Zagreb |
| Amateuryears2: | 1945–48 |
| Amateurteam2: | Dinamo Zagreb |
August Prosenik (25 April 1916 - 22 July 1975) was a Yugoslav amateur road cyclist. He competed in the individual and team events at the 1936 and 1948 Summer Olympics and placed 12th individually in 1936.[2] He won the Tour of Romania in 1946 and the Peace Race in 1948.[3]
Prosenik grew up in a poor family, as his father became disabled after a mining accident. In 1930 he moved to Zagreb and worked there as a workshop mechanic and then as a car mechanic. After retiring from competitions he became a cycling coach and a sports administrator.[4]