Florian Kainz (German pronunciation: ; born 24 October 1992) is an Austrian professional footballer who currently plays as a midfielder for 2. Bundesliga side 1. FC Köln and the Austria national team.
In July 2014, after more than a decade with Sturm Graz, Graz native Kainz transferred to Rapid Wien for an undisclosed fee. He signed for Rapid until summer 2017.
In June 2016, Kainz joined Werder Bremen on a four-year contract, for a reported €3.5 million transfer fee. On 18 March 2017, he scored his first goal for the club in a 3–0 win against Leipzig. Having been introduced as a substitute in the 88th minute he found the net two minutes later in a match that saw all three of Werder Bremen's Austrian players score in the club's highest win of the season. Two matches later he assisted the last goal in Werder Bremen’s 5–2 win away to Freiburg via free kick, after being brought onto the pitch in the 76th minute.