Mahrez, who moved to Saudi Arabia in 2023 from Manchester City, won the AFC Champions League and Saudi Super Cup during his time in the Middle East.

The 35-year-old made 122 appearances for Al-Ahli in all competitions, scoring 37 goals as well as providing 46 assists.

He featured 27 times in the Saudi Pro League last season as Al-Ahli finished third and five points behind champion Al-Nassr.

"Three unforgettable years. Countless magical moments. A legacy that will forever live in the hearts of every Al Ahli fan," a statement released by the club read.

Mahrez's decision comes shortly after confirming he had played his last game for Algeria after its exit from the 2026 FIFA World Cup to Switzerland in the Round of 32.

At the age of 35 years and 131 days, he became the second-oldest African player to start a FIFA World Cup knockout-stage match, after Senegal's Idrissa Gueye (36 years, 278 days) against Belgium a day earlier.

But he was unable to inspire his team to victory, finishing his international career with 119 caps and 40 goals, both the joint-second most for the country on their all-time list.