Namesakes
Irish Kings:
5 kings
King Domnall Ilchelgach (a.k.a. Domhnall) 565-566 
King Domnall mac Áedo (a.k.a. Domhnall) 628-642
King Domnall Midi (a.k.a. Domhnall) 743-763
King Domnall ua Néill (a.k.a. Domhnall) 956-980
King Domnall ua Lochlainn (a.k.a. Domhnall) 1083-1121
Notable Actors and Entertainers:
1 actor
Domhnall Gleeson 1983-
Scottish Kings and Queens:
3 kings
King Domnall I (a.k.a. Domhnall) 859-862
King Domnall II Dasachtach (a.k.a. Domhnall) 889-900
King Domnall III Bane (a.k.a. Domhnall) 1093-1094; 1094-1097