Jan Gustafsson (born 25 June 1979) is a German chess player, analyst and trainer.

His parents took a break from their careers when he was a child to spend a few years sailing in the Mediterranean Sea, and Gustafsson started playing chess in this setting as there were few other sports that were playable on a boat.

The family then lived in Spain before returning to Hamburg, where Gustafsson played in the local chess club.

In April 2011, he tied for 1st–3rd places with Nigel Short and Francisco Vallejo Pons in the Thailand Open in Bangkok and won the event on tiebreak.

[5] In April 2019, Gustafsson won this tournament for the second time, on tiebreak over Deep Sengupta, each having scored 7/9 points.