| Torsten Jansen | |
| Nationality: | German |
| Birth Date: | 23 December 1976 |
| Birth Place: | Adenau, West Germany |
| Position: | Left Wing |
| Clubnumber: | 5 |
| Youthyears1: | 1982–1992 |
| Youthclubs1: | TV Witzhelden |
| Youthyears2: | 1992–1994 |
| Youthclubs2: | Wermelskirchener TV |
| Years1: | 1994–1995 |
| Clubs1: | TUSEM Essen |
| Years2: | 1995–2001 |
| Clubs2: | SG Solingen |
| Years3: | 2001–2003 |
| Clubs3: | HSG Nordhorn |
| Years4: | 2003–2015 |
| Clubs4: | HSV Hamburg |
| Years5: | 2015–2016 |
| Clubs5: | THW Kiel |
| Years6: | 2016–2017 |
| Clubs6: | HSV Hamburg |
| Nationalyears1: | 1999–? |
| Nationalteam1: | Germany |
| Nationalcaps1: | 178 |
| Nationalgoals1: | 503 |
| Manageryears1: | 2017– |
| Managerclubs1: | HSV Hamburg |
Torsten "Toto" Jansen (born 23 December 1976) is a former German handballer, who spent the majority of his career playing for HSV Hamburg in the Bundesliga. He was also a regular member of the German national team. In March 2017 he took over as head coach of the Handball Sport Verein Hamburg.
He received a silver medal at the 2004 Summer Olympics in Athens and also represented Germany at the 2008 Summer Olympics in Beijing.[1] Jansen became a World champion in 2007, and European champion in 2004.