| Personal information | |
|---|---|
| Full name | Matjaž Kozelj |
| Nationality | Slovenia |
| Born | March 12, 1970 Maribor |
| Sport | |
| Sport | Swimming |
| Stroke(s) | Butterfly |
| Club | Branik Maribor |
Matjaž Kozelj (born March 12, 1970 in Maribor) is a retired male butterfly swimmer from Slovenia. He was a member of the Slovenian Swimming Squad (five swimmers) at the 1992 Summer Olympics in Barcelona, Spain, and competed in two individual events: 100m and 200m butterfly.