This is a list of football clubs that compete within the leagues and divisions of the men's Northern Ireland football league system.
NIFL Championship Intermediate A Intermediate B Division 1 Division 2 Division 3 Division 4 Premier Division Other clubs Premier Division Division 1A Division 1B Division 1C Premier Division Division 1 Division 2 Premier Division First Division Premier Division First Division Premier League Morning League Division 1 Division 2 Division 3