The Motorcycle Union of Ireland (MCUI) is the governing body of motorcycle sport on the island of Ireland.
[1][2][3] The MCUI consists of three bodies that are affiliated to the Fédération Internationale de Motocyclisme (International Motorcycling Federation).
[1][2][3] The three constituents which make up the Motor Cycle Union of Ireland are: Motorcycling Ireland (MCUI SC), the Motor Cycle Union of Ireland (Ulster Centre) and the Motorcycle Racing Association (MRA).
[1][2][3] The MCUI has jurisdiction in all questions relating to the sport of tarmac and trials motorcycling within Ireland.