Max Deegan (born 1 October 1996) is an Irish rugby union player for Pro14 and European Rugby Champions Cup side Leinster.
He plays as a number 8.
Deegan was promoted to Leinster's senior squad ahead of the 2017–18 season, having made three appearances for the province during the previous season.Deegan was named Player of the Tournament for his part in helping Ireland Under-20s reach their first ever final during the 2016 World Rugby Under 20 Championship.