Ahmed Mortadha Ouanes (Arabic: مرتضى بن وناس; born 2 July 1994) is a Tunisian professional footballer who plays as a left-back for Süper Lig club Kasımpaşa and the Tunisia national team.

Mortadha is trained at the Etoile Sportive du Sahel (ESS), where he goes through all categories of young people.

In July 2015, he transferred to the Bizertin Athletic Club (CAB) With this team, he scored four league goals during the 2015–16 season.

[7] Ben Ouanes played his first match for the Tunisia national team on 21 September 2019, in a friendly against Libya.

[8] In December 2023, he was included in the list of 27 Tunisian players selected by Jalel Kadri to compete in the 2023 Africa Cup of Nations, but he withdrew for family reasons.