|Author||Rev Patrick Woulfe|
|Source||Irish Names and Surnames|
Ó TOMHNAIR—II—O Toner, Toner; 'descendant of Tomhrar' (a Norse personal name); older form Ó Tomhrair; the name of a family of Cinel Eoghain who were seated near Lough Swilly, in Co. Donegal, where they built the church which was called from them Cill Ó dTomhrair, now anglicised Killodonnell; still common in Ulster. Ó Tomhnra (which see) is a variant.
Alphabetical Index to Irish Surnames