The 29-year-old winger enjoyed a standout campaign last term, scoring 10 goals and winning both the Supporters’ Player of the Season and Players’ Player of the Season awards.
He also returned for pre-season testing with his teammates at Marlow Road as preparations begin for the new season.
Onyedinma first joined Wycombe as a teenager in 2014 on loan from Millwall before returning for another loan spell four years later.
He made his move permanent in 2019 and later spent three years with Luton Town. However, he rejoined Wycombe in 2024, continuing a strong connection with the club.
His new deal ensures his story with the Chairboys continues as they prepare to kick off the new campaign at Blackpool on 15 August.
