Here I am giving you list of good colleges offering Cheap MBA in Dublin

American College Dublin
CMI, Communications & Management Institute
Dorset College Dublin
Dublin Business School (incorporating LSB college)
ECM College (European College of Management in Dublin)
Griffith College
Institute of Technology, Blanchardstown
National University of Ireland, Galway - Cairnes Graduate School

Hope the above list will help you to choose your desire college. Wish you good luck for your future!!