|Full name||John McKenna|
|Born||Newbridge, Co. Kildare, Republic of Ireland|
|Home town||Republic of Ireland|
|Organisation (see split in darts)|
|BDO majors - best performances|
|World Ch'ship||Last 16 1990|
|World Masters||Quarter Finals 1974|
|PDC premier events - best performances|
|World Grand Prix||Last 16 2002|
|Updated on 19 June 2008.|
It was at the 1990 BDO World Darts Championship where McKenna become notorious within the game, as the man on the receiving end of the first nine-dart finish at the World Championship, achieved by Paul Lim of the United States. McKenna had earlier beaten Peter Evison in the first round before losing to Lim in the second round. It was McKenna's only World Championship appearance to date.
McKenna returned to television in the 2002 PDC World Grand Prix, beating Cliff Lazarenko in the first round before losing to Phil Taylor. He returned to the event in 2004, but lost in the first round to Dennis Priestley.