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.

In March 2017 he took over as head coach of the Handball Sport Verein Hamburg.

Jansen was early in his career known to be a fair play player, but was suspended for 10 matches in 2013 after head butting Ivan Ninčević during a match between Füchse Berlin and HSV Hamburg.

[4] In 2015-16 he transfered to THW Kiel to replace Dominik Klein who was out with a long term injury due to a torn cruciate ligament.

[5] On March 29th 2017 he took over the coaching position at his former club HSV Hamburg replacing Jens Häusler.