Hernán Casanova (born 6 February 1994) is an Argentine tennis player.

Casanova had a career high ATP singles ranking of World No.

Casanova also has a career high ATP doubles ranking of World No.

[1] Casanova made his ATP doubles main draw debut at the 2022 Argentina Open after entering into the main draw as alternates with Sergio Galdós.

Casanova also made his ATP singles main draw debut at the 2022 Generali Open Kitzbühel as a qualifier where he lost to Jurij Rodionov.