O Chaff - Irish / Ua Lochain or Ua Leochain - Lohan - lochan / chaff. A Sept / Family branch, who had their territory in Co. Galway in Southern Connacht.

Chamberlain. They were in Ireland in Mediaeval Times in Co. Cork in Desmond / Southern Munster.

Chambers / de la Chambre. Anglo Norman origins. They were in the Ulster Province and Co. Mayo in the mid - west of the Connacht Province. Also see Cambridge.

Chamerlyn -

Chamney. Originally Champney / le Champagnois (from Champagne.) They were in Co. Wicklow and Co. Wexford in the south - east of Southern Leinster in the 17th and 18th Centuries AD.

Chapman. English occupational name. They were in all Provinces early as le Chapman in the 13th Century AD, and later in the Connacht Province in 1629 AD. Later still they were in Co. Clare in the north - west of Thomond / Northern Munster, Co. Dublin in the north - east of Southern Leinster, nearby in Co. Westmeath in the south - west of Northern Leinster and Co. Wexford in the south - east of Southern Leinster.

Charleton or Charlton. They have come into in Ireland 3 times beginning in the the 14th Century AD, then later on also after the Oliver Cromwell Invasion they were in Co. Sligo in the north - west of the Connacht Province, and then also nearby in Co. Fermanagh and Co. Tyrone in the west of the Ulster Province in the early 17th Century AD after the Confiscation of the 3,500,000 acres of the Heremonian Ui Cobhthaigh Ui Felim Dal Cuinn "Northern" Ui Niaill territories there, and the Foreign non - Catholic Plantation there.

Charters / Chartres. French toponymic. Huguenot origins. They were in Co. Cork in Desmond / Southern Munster in the 17th Century AD and are now in the Ulster Province.

Cheevers or Chivers. French origins - chievre / goat. They have been in Co. Wicklow in the south - east of Southern Leinster since the Anglo - Norman Invasion under Strongbow and Henry 11 in the 12th Century AD. As Anglo - Irish Catholics they were treated harshly after the Oliver Cromwell Invasion during his English non - Catholic Plantations in Ireland.

Cherry. English occupational name. They have been in the Ulster Province since the 17th Century AD, after the Confiscation of the 3,500,000 acres of the Heremonian Ui Cobhthaigh Ui Felim Dal Cuinn "Northern" Ui Niaill territories there, and the Foreign non - Catholic Plantation there.