For background on how the map was made (and its flaws), see the relevant blog entry.
|Mulryan||mod.mos.: Tyrone-Derry, Galway, Longford etc. Ir. Ó Maoilriain, servant of Rian (? little king). This is the original of the very numerous Ryans. In such locations, they may represent separate septs, distinct from the Ryans of Tipperary, q.v.|
|O'Ryan||rare: Waterford-Tipperary etc. Ir. Ó Riain. See Ryan.|
|Ryan||Very numerous: all areas, especially Munster and South East. Ir. Ó Maoilriain (Riain). From first name Rian, little king. The sept was located on the border of Tipperary and Limerick and is now one of the most numerous surnames. There was another Ó Riain in Carlow. The latter form is now the usual Irish version.|
DEDs where Mulrean and a second surname are found together