John Anthony Gallagher (born 29 January, 1964 in London) is a former rugby union All-Black. He was one of the first of a succession of All-Blacks to switch codes to rugby league. Gallagher was initially signed by David Ward for Leeds RLFC, but the move was unsuccessful. He may have found the tactical differences between the two codes difficult to adjust to, particularly in his favoured full-back position. Gallagher may have been the victim of being targeted by opposition players and was badly injured in an alleged spear tackle. He found greater success in the less rarefied atmosphere of playing for the club then known as London Crusaders, where his reliable kicking and astute play made a significant contribution over several seasons.
