Johnson - Irish / Mheic Shane (Descended from a son of Shane / Sean / John) Often used to anglicize Mac Shane. A Heremonian Ui Cobhthaigh Dal Cuinn "Northern" Ui Niaill Cenel nEogain Sept / Family branch descended from *87.Niall of the Nine Hostages the 126th King of Tara / Ireland in the 4th Century AD. They had their territory in Co. Armagh and Co. Tyrone in the Ulster Province. Used also synonymously with Johnston. See also Mac Keown and Mac Keon. Ancestors - *88.Eogain the 1st King of Aileach (Cenel nEogain), *89.Murray / Muiredach the 2nd King of Aileach, *90.Murtough / Muirchertach mac Ercae, *91.Donnell / Domhnall "Ilchegach," *92. Aed "Uardidnach," *93.Mael "Fithrich," *94.Mael "Duin," *95.Fergal the 151st King of Tara / Ireland,*96.Niall "Frossach," *97.Aed "Oirdnide," *98.Niall "Caille," *99.Aed "Findliath," *100. Niall "Glun Dubh" (O Neills of Ulster), *101.Murtough / Muirchertach, *102.Donnell / Domhnall Ua Niaill, *103.Murtough / Muirchertach, *104.Flaherty / Flaithbertach Ua Niaill.

Johnson. An Irian Conmaicne Magh Rein Muintir Anghaile Sept / Family branch of the O Farrells / O Ferralls / Ui Fearghaile, who had their territory in Co. Longford in the north - west of Northern Leinster. Especially see - Mac Shane.

Johnston. Scottish origins. From John’s Tower (Descended from John)  A Norman Land Lord who arrived in the time of the Stuart English King, James 1st into Co. Fermanagh in the south - west of the Ulster Province.

Johnson. Scottish origins. Especially in the Ulster Province. Less numerous then Johnston, which is a British toponymic, but it is used synonymously with Johnson.

Jolley or Joly / Joliffe / festive.  French origins. They have been in Ireland since the 16^th Century AD.

Jones or Joanes. Welsh origins. (Descended from John’s son) - ioan. They are in all Counties. Gaelicized as Mheic Seoin.

Mac Jordan. Gaelicized as Mheic Siurtain / Shiurdain. (Descended from a son of Jordan) Adopted by the Anglo Norman de Exeter family, which see, who held territory in Co. Mayo in the mid - west of the Connacht Province after the Anglo - Norman Invasion in the 12th Century AD "Mac Jordan’s Country." Now in all Counties. They were also especially in Co. Down in the south - east of the Ulster Province.

Jowers -

Joy. French origins. They arrived into Ireland early. Also used in the Connacht Province as a variant for Joyce, which see.

Joy. French origins. They were in Co. Kerry and Co Waterford in the Munster Province.

Joyce / Jorz / Seoigh - iodoc - iud / lord or chief. Breton Norman Welsh origins. They are descended from Thomas de Joise a Welsh Norman who arrived in Ireland in the 13th Century AD and married a daughter of one of the Heberian Dal gCais Ui mBriain Princes based in Co. Clare in the north - west of the Munster Province. They settled on the border of Co. Mayo and Co. Galway in Western Connacht in the region now known as "Joyce’s Country" under the auspices of the Heremonian Ui Cobhthaigh Dal Cuinn Ui Briuin Seola O Flahertys. They had their castle at Renvyle, belonging also to the O Flahertys at one time and became "More Irish then the Irish." Like so many others the family survived until the 17th Century AD under the English ethnic and religious oppression. They were originally one of the "14 Foreign Tribes of Galway" and were known to be of big stature. Some members of the family also used the name Cunnagher / Conchobhair / Conor ? - (Descended from a son of Conor) as a synonym in Co. Mayo.

Joynt / le Joint / the slim or graceful. French Huguenot origins. They were originally in Co. Limerick in the mid - north - west of the Munster Province and Co. Mayo in the mid - west of the Connacht Province.