The 2026 Manly Warringah Sea Eagles season will be the 77th in the club's history since their entry to the New South Wales Rugby League premiership in 1947. The club will celebrate its 80th season recognising the three seasons the club played with the North Sydney Bears as the Northern Eagles. Anthony Seibold will coach the club for the fourth consecutive year. Tom Trbojevic will captain the club, taking over from Daly Cherry-Evans following his departure to the Sydney Roosters. Former Manly forward Jason King will take over the role of CEO after Tony Mestrov departed the club.[1] Mestrov left after a difficult 2025 season which included negotiations with high-profile players that either failed or faced significant challenges which included the now former captain and halfback Cherry-Evans and fullback Tom Trbojevic.[1] Seibold was sacked on the 27th of March after the team failed to win the first three games of the season at home. [2] In his full three seasons at the club he only took the club to the finals in 2024 with the side finishing in 12th place and 10th place in 2023 and 2025. Assistant coach and former Manly player Kieran Foran took over as the interim coach on the 28th of March. [3]