Mr Browne has been in the role for 23 years.
Philip Browne is to retire as IRFU Chief Executive after 23-years at the head of the association.
He said he made the decision to coincide with his 60th birthday, but delayed leaving due to the pandemic.
Browne will be replaced on an interim basis by Chief Operating Officer Kevin Potts, with Korn Ferry assisting with the recruitment of a permanent replacement.

Munster's Jack Crowley Ruled Out Of Game Against Bath
Daniel Wiffen Qualifies For 800-Metres Freestyle Final
Rassie Erasmus To Remain South Africa Head Coach Until 2031
Two Kildare Teams In GAA Action This Weekend
Friday Morning Sports Update
Kildare Trio Feature As Leinster Rugby Confirm Squad For Investec Champions Cup Round One
World Darts Championship To Remain At The Alexandra Palace Until 2031
Ellie McCartney Through To Women's 200-Metres Breaststroke Semi-Finals In Poland