| Medal record | ||
|---|---|---|
| Representing |
||
| Men's swimming | ||
| Olympic Games | ||
| 1896 Athens | 1200 m freestyle | |
Ioannis Andreou was a Greek swimmer. He competed at the 1896 Summer Olympics in Athens.
Andreou competed in the 1,200 metres freestyle event. He placed second of the seven swimmers, with a time of 21:03.4. The winner, Alfréd Hajós, had finished in 18:22.2.