Jason Conlan (born 1971) is a New Zealand cartoonist, best known under the pseudonym Mister J, who is the creator of Pro Wrestling Illustrated's monthly cartoon strip "On the Mat". He has also contributed to the similar Australian wrestling publication Piledriver and long-running newsletter Wrestling Then and Now as well as professional wrestling websites ProWrestlingDaily.com and Bill Apter's 1wrestling.com. Conlan has also done work for the online version of The Sun, the most-read daily newspaper in the United Kingdom.