Luka Mikrut (born 16 April 2004) is a Croatian tennis player. He has a career-high ATP singles ranking of world No. 159 achieved on 13 October 2025 and a doubles ranking of No. 265 achieved on 16 February 2026.
Mikrut made his ATP main draw doubles debut at the 2023 Croatia Open Umag after receiving a wildcard into the doubles main draw with Zvonimir BabiÃÂ.
For his singles debut, he received a wildcard for the main draw of the 2024 Croatia Open Umag where he lost to Camilo Ugo Carabelli.