| Cornelius van Oyen | |
| Birth Date: | 28 November 1886 |
| Birth Place: | Brandenburg an der Havel, Germany |
| Death Place: | Berlin, Germany |
| Sport: | Sports shooting |
| Show-Medals: | yes |
Cornelius van Oyen (28 November 1886 – 19 January 1954) was a German sport shooter who competed in the 1936 Summer Olympics. In 1936 he won the gold medal in the 25 metre rapid fire pistol event.[1]