| Family Name |
Gaelic Equivalent |
Original Language |
English Translation |
| Mc Cabe | Mac C�ba | Aut vincere aut mori. | Either to conquer or die. |
| Mc Caffrey | Mac Cafartaig | Justitia et fortitudo invincibilia sunt. | Justice and fortitude are invincible. |
| O' Cahan | - | Felis demulcta mitis. | The stroked cat is meek. |
| Cahill | � Cathail | In Domino confido. | In God we trust. |
| Caldecott | - | In utrumque paratus. | Prepared for both. |
| Caldwell | Mac Conluain | Ense libertatem petit inimico tyrannis. | - |
| Mc Call | Mac Camaoil | Furio tego. | I core with iron. |
| Callaghan | � Ceallach�in | Fidus et audax. | Faithful and bold. |
| Callander | - | - | I mean well. |
| Callinan | � Callan�in | Fortis dominabitur astris. | Strength dominates the stars. |
| Calthorpe | - | Gradua diversi via una. | There is but one way to all difficulties. |
| Cambridge | - | Esse quam virderi. | To be, rather than to seem. |
| Cameron | Camgr�n | - | Unite. |
| Cameron | Camgr�n | Pro rege et patria. | For king and country. |
| Cammell | - | Perseverando. | By perservering. |
| Campbell | Mac Catmaoil | - | Forget me not. |
| Campbell | Mac Catmaoil | - | I bear in mind. |
| Campbell | Mac Catmaoil | - | I will not forget. |
| Campbell | Mac Catmaoil | - | Thus far. |
| Campbell | Mac Catmaoil | - | True to the end. |
| Campbell | Mac Catmaoil | - | Wisdom's beginning is God's fear. |
| Campbell | Mac Catmaoil | Constantia et prudenter. | By perseverance and prudence. |
| Campbell | Mac Catmaoil | Fortitudine et prudentia. | With fortitude and prudence. |
| Campbell | Mac Catmaoil | Pro patria semper. | For my country ever. |
| Campbell | Mac Catmaoil | Terra marique fide. | With faith by land and sea. |
| Campbell | Mac Catmaoil | Vix ea nostro noco. | I scarce call these things our own. |
| Canavan | � Ceannubain | Sepientia Donum. | Wisdom is the gift of God. |
| Mc Cann | Mac Cana | Crescit sub pondere virtus. | Virtue thrives under oppression. |
| Canning | � Cain�n | Ne cede malis sed contra. | Yield not to the misfortunes, on the contrary meet them with fortitude. |
| Cantrell | - | Proprio vos sanquine pasco. | I feed with my own blood. |
| Cantwell | Cantual | Proprio vos sanquine pasco. | I feed with my own blood. |
| Canty | � Cainte | Buan d�lis. | Firm friendship. |
| Capel | - | Fide et fortitude. | By fidelity and fortitude. |
| Capron | - | Sub cruce salus. | Salvation under the cross. |
| Carden | - | Fide et amore. | Faith and love. |
| Carew | - | Nil admirari. | Not to admire. |
| Car(e)y | � Ciara | Sine macula. | Without stain. |
| Carlton | - | Nunquam non paratus. | Never unprepared. |
| Carmichael | - | Toujours prest | Always nimble. |
| Carmody | � Cearmada | Honor et amor. | Honour and love. |
| Carnac | - | Sic itir ad astra. | This is the way of the stars. |
| Carnegie | - | - | Dread God. |
| Carnagie | - | Alis aspicit astra. | Flying, he keeps his eye on the stars. |
| Carney | - | Semper fidelis. | Always faithful. |
| Carolan | � Cear�ll�in | Nunquam non paratus. | Never unprepared. |
| Carpenter | - | Audaces fortuna juvat. | Fortune favours the bold. |
| Carr(e) | � Ceara | Tout droit. | Always right. |
| Carr(e) | � Ceara | Fide clavo. | Made sure with a nail. |
| (O')Carroll | � Cear�ill | In fide et in bello. | Firm in faith and in war. |
| Mc Carron | Mac Cear�in | Non dormis. | I sleep not. |
| Carson | Mac Corsain | Virtute et valore. | By virtue and valour. |
| Mc Cartan | Mac Art�in | Buailimse �. | I strike. |
| Carter | Mac Art�ir | Sub libertate quietem. | Rest under liberty. |
| Mc Carthy | Mac Cartaine | Forti et fideli nihil difficle. | To the brave and faithful man nothing is difficult. |
| Mc Carthy | Mac Cartaine | L�m l�aidir in uactar. | Strong hand uppermost. |
| Mc Cartney | Mac Cartaine | Spe et amor. | I rejoice in hope. |
| Cartwright | - | Fuimus. | We have been. (We have made our mark.) |
| Carvick | - | - | Be steadfast. |
| Carwardine | - | - | On in the right. |
| Carwright | - | - | Defend the fold. |
| Cary | - | Comme je trouve. | As I find it. |
| Casement | - | Dum spiro spero. | While I breath I hope. |
| Casey | � Catasaig | Per varios casus. | By various fortunes. |
| Casley | - | Malo mori quam foedari. | Death rather than dishonour. |
| Cassidy | � Caisde | Frangas non flectes. | You may break, but shall not bend me. |
| Castleman | - | - | Without God castles are nothing. |
| Caswall | - | Non multa, sed multum. | (Say) not many (words), but much. |
| Catbcart | - | - | By faith we are saved. |
| Cathcart | - | - | I hope to speed. |
| Cator | - | Nihil sine labore. | Nothing without labour. |
| Caufield | Mac Catmaoil | Deo duce fero commitante. | God my guide, my strength, and companion. |
| Mac Causland | - | Virtus sola nobilitat. | Virtue alone ennobles. |
| Cave | - | - | Cave. |
| Cayley | - | Nul q'um. | Only one. |
| Cecil | - | Cor unum via una. | One heart one way. |
| Cecil | - | Sero sed serio. | Late but in earnest. |
| Chadwick | - | Toujours pret. | Always ready. |
| Challen | - | Gloria Deo. | Glory God. |
| Chalmers | - | Spero. | I hope. |
| Chamberlayne | - | Audaces fortuna juvat. | Fortune favours the bold. |
| Chambers | Mac Ambr�is | Spero dum spiro. | I hope while I have life. |
| Chambre | - | En Dieu est tout. | In God is all. |
| Chaplan | - | Labor omnia vincit. | Work wins everything. |
| Chapman | - | Crescit sub pondere virtus. Virtue thrives beneath oppression. | - |
| Chapman | - | Numine fertus crescit sub pondere virtus. | Virtue thrives beneath oppression. |
| Chard | - | Nil desperandum. | Never dispair. |
| Chatterton | - | Loyal � mort. | Loyal to death. |
| Chawner | - | Nil desperandum. | Never dispair. |
| Checkland | - | Omne bonum Dei donum. | All good things comes in the gift of God. |
| Chester | - | Vincit qui patitur. | The one who is patient wins. |
| Chesterman | - | Semper fidelis. | Always faithful. |
| Cheston | - | Ex merito. | With merit. |
| Chinn | - | - | The eagle does not catch flies. |
| Chisholm | - | Vi et virtute. | By strength and valour. |
| M' Chlery | - | Labore et honore. | Labour with honour. |
| Chrisop | - | Mens conscia recti. | A mind conscious of rectitude. |
| Christie | - | Pro rege. | For my king. |
| Church | - | Virtute. | By virtue. |
| St. Clair | - | - | Fight and faith. |
| Clancy | Mac Lanncaid | Fide et fortitude. | By fidelity and fortitude. |
| Clark | � Cl�irig | Fortiter. | Boldly |
| Clark | � Cl�irig | Sans changer. | Without changing. |
| Clark | � Cl�irig | Turris fortis mihi Deus. | God is a tower of strength to me. |
| Clark | � Cl�irig | Virtute et labore. | By valour and exertion. |
| Clarke | � Cl�irig | - | The time will come. |
| Clarke | � Cl�irig | Carpe diem. | Seize the present opportunity. |
| Clarke | � Cl�irig | Constantia et fidelitate. | By perseverance and fidelity |
| Clarke | � Cl�irig | Vir gregis. | A man of the people. |
| Mc Clean | Mac Giollae�in | Virtue mine honour. | Virtue is my honour. |
| Cleather | - | Dum spiro spero. | While I breath I hope. |
| M' Cleish | - | - | Love. |
| Cleland | - | - | For sport. |
| Mc Cleland | - | - | Think on. |
| Cleland | - | Non sibi. | Not for himself. |
| Clements | Mac Lagmainn | Patris virtutibus. | By hereditary virtues. |
| Clere | - | Virtute non verbis. | Deeds not words. |
| Clerke | - | - | Free for a blast. |
| Clery | � Cleirig | Vir gregis. | A man of the people. |
| Clevland | - | Audaces juvat. | Fortune the bold. |
| Clifford | Mac Rifeartaig | Semper paratus. | Always prepared. |
| Clinkscales | - | Manu forti. | With a strong hand. |
| Mc Clintock | Mac Giollalonnt�g | Virtute et labore. | By valour and exertion. |
| Clinton | Cliont�n | Loyaulte n'a honte. | Loyality knows no shame. |
| Clipsham | - | Fortiter. | Boldly |
| Close | � Clusaig | Fortis et fidelis. | Brave and faithful. |
| Cloville | - | - | All is in God. |
| Mc Clure | Mac Giollallir | Spectemur agendo. | Let us be judged by our actions. |
| Mc Cluskey | Mac Bhloscaidh | Sica inimicis. | A dagger to his enemies. |
