| Sebastian Koch-Hansen | |
| Fullname: | Sebastian Koch-Hansen |
| Nationality: | Danish  |
| Height: | 194 cm. |
| Position: | Right back |
| Currentclub: | CAI BM Aragón |
| Clubnumber: | 20 |
Sebastian Koch-Hansen (born 19 June 1984) is a Danish handball player, currently playing for Liga ASOBAL side CAI BM Aragón. He is the older brother of fellow FCK Håndbold player Nikolaj Koch-Hansen.
Sebastian graduated magna cum laude from Copenhagen Business School.
He is now currently employed by Energitilsynet.
He now lives a quiet family life with his loving girlfriend and young child in Northwestern Copenhagen