Matt O'Connor has been appointed Leinster head coach on a three-year deal and will link up with the team on July 1.
Australian-born O'Connor joins the blues from Aviva Premiership side Leicester Tigers, where he has been head coach since July 2010.
The son of a former Australian rugby league professional, the 42-year-old played most of his club rugby in Canberra with ACT and then the Brumbies and was capped at senior level by Australia against Ireland, while also fitting in a spell in Super League and a couple of seasons in Japan.
Matt coached in Japan before his return to Australia where he worked for four years with the Brumbies during which time he also coached Australia 'A' before joining Leicester Tigers in 2009.
His appointment follows the naming of Joe Schmidt as new coach of the Ireland national team.
"We're delighted that Matt has agreed to become head coach and we believe that he will be carry on the fine work which has been done over the course of the last eight years," Leinster Chief Executive Mick Dawson said.
"Matt joins Leinster with an impressive pedigree under his belt at club level with the Brumbies - who were Provincial champions in 2006 - and Leicester Tigers - who have boasted the league's best defensive record (in 2009-10) and most tries scored (between 2008-13) - during his time on their coaching team.
"We were impressed by Matt's vision for Leinster Rugby and speaking to him it is clear that he is excited about the opportunity."
O'Connor said he was looking forward to working with "the province's established and burgeoning talent from the renowned Leinster Academy".
"I am delighted to join Leinster," he said. "y family and I are hugely excited about starting this new chapter in our lives."