Cullaine, Culaine, MacCulen, MacCollin, MacColin, O'Colen, O'Collen, O'Cuilin, O'Cuillin, O'Culane, O'Culen, O'Culhoon, O'Culloon, MacCullen, Cullain, Culon, Cullon, Culling and many more. First found in County Wicklow , but other references claim O'Cullen, O'Kenealy, and O'Sheehan, were chiefs in the baronies of Conello, county Limerick . Cullen is also a small village