Florian Jenni (born 24 March 1980 in Lieli) is a Swiss chess grandmaster.

When he was five years old, he was taught to play chess by his mother and later on by his father.

Jenni, who studied economics and plays the piano in his free time, won tournaments in Lenk (2002), the Swiss Championship in Silvaplana (2003), and Winterthur (2005).

He is also a member of the Swiss National Team.

This biographical article relating to a Swiss chess figure is a stub.