A search is now underway to find his replacement.
Leinster have confirmed that Leo Cullen will leave the province upon the expiry of his contract.
A search is now underway to find his replacement, who will take over following the conclusion of the 2026/27 season.
The news comes just days after their URC triumph over the Bulls at Croke Park.
Leinster Rugby Statement
Leinster Rugby can confirm that Head Coach, Leo Cullen, will step away from his role at the conclusion of his current contract at the end of the 2026/27 season.
Leo, and his coaching team, will continue to lead the Leinster Rugby Senior Men’s team until June 2027 and will continue their preparations for the upcoming season which are already well advanced.
Leinster Rugby, in collaboration with the IRFU, will immediately begin a formal recruitment process to ensure that the best possible candidate is secured for the position.
Speaking about his departure from the role, Head Coach Leo Cullen said: “By the end of next season, in 2027, I will have been in my current job for 12 years. It’ll also be 32 years since I first represented Leinster as a Schools player! So, I think the timing will be right for me to move on to a new challenge.

Sunday Morning Sports Update
Second Round Of FAI Cup Games Get Underway Tonight
Two Changes Made To Limerick Ahead Of Sunday's All Ireland Hurling Championship Final
Bittersweet Night For League Of Ireland Teams In Europe
Day Two Of The Open Championship At Royal Birkdale
Friday Morning Sports Update
Women's FAI Cup Quarter Finals Fixtures Have Been Confirmed
Two League Of Ireland Teams Play In European Qualifiers Tonight