Mac Gaynor or Mac Ginver - Irish / Mag Fhionnbhairr - fionnbharr / fair headed. An Irian Conmaicne Magh Rein Muintir Geradhain Sept / Family branch of the Tellach Finnoigi, Tellach Gabhadhain, who had their territory at Lough Gowna in Co. Longford in the north - west of Northern Leinster. Some Mac Ginvers are now known as Mac Ginty as in Co. Monaghan in Southern Ulster. Used with Mag instead of Mac it became Kinure in Ormond / North Eastern Munster. Especially see - Mac Ginver. 

Mac Geady - Irish / Mag Geadaigh or Eidigh. A Sept / Family branch, who had their territory in the north west of Co. Donegal in the north - west of the Ulster Province.

Mac Geaghan or Mac Gegan. Used as variants for Geoghegan, which see.

Mac Geagh - Irish / Mac Eathach or Mag Eachadha. A Sept / Family branch, who had their territory in Co. Donegal and nearby in Co. Derry in Northern Ulster. See also Mac Gagh and Mac Gahey.

O Geane - Irish / Ua Geibhinn. Used as a variant for O Geaney, which see.

O Geaney - Irish / Ua Geibheannaigh - geibheannach - fettered. A Sept / Family branch, who had their territory in Co. Cork in Desmond / Des Mhumhain / Southern Munster. Used also for Mac Geaney in the Ulster Province.

Mac Geaney - Irish / Mheic Geibheannaigh - geibheannach / fettered. A Sept / Family branch, who had their original territory in Co. Roscommon in the east of the Connacht Province, but were later on in Southern Ulster. See also - O Geaney.

O Gearan. A Sept / Family branch, who had their territory in Co. Galway in Southern Connacht.

Mac Gearn / Glenties. A variant used by the Irish Ui Gearain in Co. Donegal in the north - west of the Ulster Province. See also Sharpe.

O Geartain - Irish / Ua Ghearlanaigh. A Sept / Family branch, who had their territory in Co. Louth in the north - east of Northern Leinster.

O Geary - Irish / Ua Ghaorthaidh / wooded valley. A Sept / Family branch, who had their territory in Co. Cork in Desmond / Des Mhumhain / Southern Munster.

O Geary - Irish / Ua Gadhra. They had their territory in Co. Cork in Dermond / Des Mhumhain / Southern Munster were it was mainly used by a Sept / Family branch - of the Heberian Cianachta O Garas, which see. Ancestors - *86.Teague mac Cian, *85.Cian (Cianachta), *84.Ailill "Oluimm" the 1st King of Munster.

Mac Geary or Mac Gerry. Used as variants for Mac Garry, which see, by one of their Septs / Family branches, who had their territory in Co. Armagh and Co. Tyrone in Southern Ulster.

Mac Gee - Irish / Mag Aodha / hAodh anglicized incorrectly as Hugh. A Sept / Family branch, who had their territory in Co. Westmeath in the south - west of Northern Leinster where they were a branch of the Muintir Tlamain.

Mac Gee - Irish / Mag Aodha / Magee. A Sept / Family branch, who had their territory in Co. Donegal in the north - west of the Ulster Province and on the Co. Tyrone border there. See also - Hughes.

Mac Gee / Mag Aodha. Highland Scottish and Irish origins. Usually spelt Magee in the east of the Ulster Province where is "Island Magee" on the Co. Antrim coast. See also - Wynne.

O Geehan. Used as a variant by the O Gahans, which see, in Co. Wicklow in the south - east of Southern Leinster.

Mac Geehan - Irish / Mheic Gaethain. An Irian Laeghis Ui Laoighis Sept / Family branch of the O More / O Moore / Ui Mordha, who had their territory in Co. Laois in the mid - north - west of Southern Leinster. Especially see - Mac Gahan.

Mac Geehan - Irish / Mheic Gaoithin - gaoth / wind. A Sept / Family branch, who had their territory in Co. Donegal in the north - west of the Ulster Province often written Mageean. See also Guihen.

O Geelan - Irish / Ua Giallain / giall / hostage. A Sept / Family branch, who had their territory in Co. Leitrim in Northern Connacht.

Mac Geever. Used as a variant for Mac Ivor, which see, in Co. Donegal in the north - west of the Ulster Province.

Mac Geheran. A Sept / Family branch, who had their territory in Northern Connacht. Used also for Mac Gahern, which see.