Leonardo Lukačević (born 21 January 1999) is an Austrian professional footballer who plays as a left-back for Rheindorf Altach.

[1] For the 2019–20 season, he moved to the reserve team of Austrian Bundesliga club Admira Wacker.

[5] In July 2019, he was included in the first-team squad for the first time for a match against Union Edelweiß Linz.

He made his debut in the Bundesliga in August 2019, when he was in the starting eleven on the third matchday of the season against LASK.

[8] On 5 September 2019, Lukačević gained his first cap for the Austria under-21 team in a 2021 UEFA European Under-21 Championship qualifier against Andorra.