Johnny Sexton vacated the role following his retirement from the sport last month.
Leinster have confirmed the appointment of Garry Ringrose and James Ryan as joint captains.
The pair replace Johnny Sexton, who retired following the World Cup.
Both Ringrose and Ryan returned to Leinster training earlier this week following their exploits with Ireland in France.
Leinster are next in action against the Dragons in the URC this Sunday.
Kick off at Rodney Parade is set for 1.15pm.
Offaly Travel To Tyrone In National Football League
Laois And Westmeath Clash In National Football League
Three AIL Wins In A Row The Aim For Buccaneers This Weekend
LGFA: Back To Back Wins The Goal For Westmeath
Shane Lowry Records Opening Round 70 At Cognizant Classic
We Hope To Give The Fans Something To Shout About - Ian Ryan
Maher Milking All She Can From Farming And Starring In Offaly Engine Room
NHL: Offaly Face Limerick In Final League Game
Portlaoise Panthers Looking To Continue Good Form In Division One
Shane Lowry In Action In Florida This Week
NHL: Improving Each Week The Goal For Laois
Grainne Walsh Progresses At Strandja Memorial Tournament
Crunch Weekend For Midlands Sides In National Camogie League
James Gormley Named On Irish Squad For FIBA EuroBasket Qualifiers
Portlaoise Panthers Suffer Tough Defeat In Super League
CCFL: St Peter's Extend Their Advantage At Top Of Premier Division
NFL: Relegation Firmly On The Cards For Offaly
Laois "Devastated" By Defeat Despite Delivering "Manliness" - Justin McNulty
Big Camogie Wins for Westmeath and Laois Over The Weekend