Leo Cullen has signed a two-year contract extension with Leinster, the club has confirmed.
The head coach, who was appointed at the start of the 2015/16 season, will remain in charge of the province for a further two years until the end of the 2020/21 season.
Leinster Rugby CEO Mick Dawson also confirmed that senior coach Stuart Lancaster will also be staying on with the club, but the duration of his extension has not been announced.
Lancaster had been linked to a role on Andy Farrell's Ireland coaching ticket after the cup, but today's announcement brings an end to that speculation.
Cullen guided Leinster to Guinness Pro14 and Champions Cup glory last season, while former England head coach Stuart Lancaster joined the club in September 2016.
"Leo's skills as a player and as a captain have been well celebrated over the years and rightly so," Dawson told leinsterrugby.ie
"Over the last four seasons he has continued to build on that legacy and has added considerable coaching credentials to his list of achievements."
"Not only did Leo oversee the great double success of last season, he also oversaw the rebuilding of the playing squad after a number of high profile retirements and the recruitment of the new coaching team.
"We have seen the impact Leo has had on the organisation both on and off the field and we are thrilled to see him commit for a further two seasons with the club.
"That level of continuity is crucial for the model that we have here at the club, a model that Leo not only believes in but is a product of.
"In his four seasons he has capped 43 new players with the majority of them coming from the 12 counties of Leinster.
"This season he has capped eight players from our Academy in the 54 players used across the Guinness PRO14 and the Heineken Champions Cup.
"This is an important announcement for the club and we are delighted to have our business done ahead of a crucial block of games for Leo, his staff and the players."