Saifeddine Nejmaoui (born May 5, 1981) is a Tunisian boxer who won the lightweight division at the 2007 All-Africa Games and twice competed at the Olympic Games: 2004 and 2008.
In Athens 2004 he lost his first match to Frenchman Khedafi Djelkhir (13:38). He qualified for the Athens Games by winning the gold medal at the 1st AIBA African 2004 Olympic Qualifying Tournament in Casablanca, Morocco. In the final of the event he defeated Uganda's Brian Mayanja.
Nejmaoui won the African Championships in 2005. At the All-Africa Games he won the lightweight title in Algiers defeating Owethu Mbira in the semis. At the qualification he won all his matches including against Hamza Kramou, but his draw at the Olympic Games matched him with reigning Olympic Featherweight Champion Aleksei Tishchenko and he lost on points (2:10).
| Division | Opponent | W/L | Score | |
|---|---|---|---|---|
| 2004 Olympic Games in Athens, Greece | ||||
| - 57 kg | L | 13 - 38 | ||
2005 African Championships in  Casablanca, Morocco | ||||
| - 57 kg | W | RSCO | ||
| W | 24 - 4 | |||
| W | 30 - 16 | |||
2005 World Cup in  Moscow, Russia | ||||
| - 60 kg | W | 35 - 24 | ||
| L | KO-1 | |||
| 2007 All-Africa Games in Algiers, Algeria | ||||
| - 60 kg | W | 21 - 8 | ||
| W | 14 - 7 | |||
| W | 19 - 12 | |||
| W | +12 - 12 | |||
| 2008 AIBA African Olympic Qualifying Tournament in Algiers, Algeria | ||||
| - 60 kg | W | 18 - 5 | ||
| W | 19 - 7 | |||
| W | 11 - 4 | |||
2008 Olympic Games in  Beijing, PR China | ||||
| - 60 kg | L | 2 - 10 | ||