Surname Origins and Variants
C
Canavan, O'Canavan, Canaman, Kinevan, Kinavan, Kanavan, O'Kennevain
Carroll, O'Carroll, Carroll, Carrel, Carrell, Carrill, Carrol, Caryll, Garvil, Garvill
Caufield, Caulfeild, Caulkin, Calfkins, Cawlfield, Cawfield, MacCaul, MacCawell
Concannon, O'Concannon, Cancannon, Concanon, Cancanon, O'Concanon, Connon
Connolly, Conolly, Connally, O'Connolly, Connolley, Conally, Connelly, Conoley, Connaleigh, Connelay, Conley, Conlay, Conlaye
Conroy, Conry, Conray, Conrey, O'Conroy, O'Conry, Connery, Conneray, Conneroy, Connroy, Connry
Corlis, Carlesse, Carelesse, Careless, Carless, Karelees, Kareles, Careles, Corless, Curless, Korelees
Cosgrove, Cosgrave, O'Cosgrove, O'Cosgrave, McCosgrove, McCosgrave Cosgriff
Costello, MacCostello, Costillo, Costallo, Kostello, McCostello, Caustello, Costellow
Cunningham, Cunninghame, Cunyngham, Cunnyngham, Cunnynghame, Cummingham
Curley, McCurley, Corley, MacCorley, Curlee, Curling
Coughlin MacCochlain, O'Cochlain, Coghlan, Coghlan , O'Coughlan, Coughlan, Cohalan, MacCoughlan.