Kai Karsten (born 22 June 1968) is a retired German sprinter who specialized in the 400 metres.

Karsten competed for the club Eintracht Braunschweig,[2] which in athletics enters a joint team with other Braunschweig-based clubs under the name of LG Braunschweig.

In 1994, he won the national championship in the 400 metres.

[3] Karsten represented Germany in the 4 × 400 metres relay events at the 1994 European Athletics Championships in Helsinki,[4] the 1995 World Championships in Athletics in Gothenburg, and the 1996 Summer Olympics in Atlanta.

This biographical article about a German sprinter is a stub.