Florian Grillitsch (born 7 August 1995) is an Austrian professional footballer who plays for 1899 Hoffenheim and the Austria national team as a midfielder, or centre back.
Born in Neunkirchen, Austria on 7 August 1995, Grillitsch played for SVSF Pottschach and St. Pölten in his youth football career.
Grillitsch joined Werder Bremen on 1 July 2013. He split the 2013–14 season between the Werder Bremen U19’s youth team and Werder Bremen II. He made 15 appearances in the A-Junioren-Bundesliga Nord/Nordost scoring 11 goals and made five appearances in the Regionalliga Nord for Werder Bremen II. In the 2014–15 season, Grillitsch made 26 appearances scoring nine goals for Werder’s reserve team.
On 16 January 2017, Grillitsch signed a contract with 1899 Hoffenheim until 2021, starting from the 2017–18 season.