Frederik Fetterlein
Frederik Fetterlein is a retired tennis player from Denmark, who turned professional in 1989.
Tennis career
The right-hander Fetterlein represented his native country at the 1996 Summer Olympics in Atlanta, Georgia, where he was defeated in the second round by Switzerland's Marc Rosset. Fetterlein reached his career-high ATP singles ranking of World No. 75 in October 1995. During his career, he defeated Thomas Muster and Stefan Edberg, amongst other top players.ATP Challengers and ITF Futures titles
Singles: 4
| No. | Date | Tournament | Surface | Opponent | Score |
| 1. | Rogaška Slatina, Slovenia | Carpet |  Radomir Vasek | 6–3, 6–4 | |
| 2. | Cherbourg, France | Hard |  Lionel Roux | 6–3, 6–4 | |
| 1. | Denmark F1 | Clay |  Andreas Vinciguerra | 6–1, 6–2 | |
| 2. | Great Britain F7 | Hard |  Paul Baccanello | 1–4, 5–4, 4–2, 5–4 |