John O'Neill (born 18 September 1973) is an Irish former rugby union player.
In 2002 he went on to play against Leicester in the Heineken cup final in the millennium stadium where Munster were defeated again .
He is perhaps best known for scoring the infamous "try that wasn't" in Munster's 16–15 Heineken Cup semi-final defeat against Stade Français in 2001.
Despite television replays proving that O'Neill had in fact scored a legitimate try, the video evidence could not be used, as it was only available in the Six Nations at the time.
[1] O'Neill was called up to the Ireland squad that toured new Zealand in 2002 but he never won any international caps.