Oliver Dziubak (born 30 March 1982 in Velbert, Germany) is a male javelin thrower from Australia. His personal best is 82.79 metres, achieved in February 2004 in Melbourne.
Dziubak won the bronze medal at the 2006 Commonwealth Games. In addition he competed at the 2004 Olympic Games without reaching the final.
| 2004 | Olympic Games | Athens, Greece | 19th | 78.53 m | |
| 2006 | Melbourne, Australia | 3rd | 79.89 m |