| Cable | Old French | rope |
| Cadby | Old Norse | The warrior's settlement. |
| Cadell | Welsh | The battle spirit. |
| Cadeo | Vietnamese | folk song |
| Cadman | Celtic | A man of battle. |
| Cadmus | Greek | A man from the east. A mythological figure. |
| Cadogan | Old Welsh | Honour in battle. |
| Caedmon | Celtic | A wise warrior. |
| Caerwyn | Welsh | A blessed or holy fort. |
| Caesar | Latin | The name of the famous Roman emperor. |
| Cahil | Turkish | Young and inexperienced. |
| Cailan | Gaelic | child |
| Cailean | Scottish Gaelic | The victory of the people. |
| Cain | Hebrew/Old French | The son of Adam and Eve who murdered his brother Abel. Old French: Battlefield. Also see Cane. |
| Caine | The son of Adam and Eve who murdered his brother Abel. Old French: Battlefield. Also see Cane. | |
| Caithness | From Shakespeare's play Macbeth. | |
| Caius | From Shakespeare's play Titus Andronicus. | |
| Cajan | ||
| Cal | Old English | A calf herder. |
| Calder | Old English | Stream. |
| Caldwell | Old English | cold spring |
| Caleb | Hebrew | The devoted one. |
| Caley | Irish Gaelic | Slender. A boy or girl's name. |
| Calhoun | Warrior. | |
| Caliban | From Shakespeare's play The Tempest. | |
| Calisto | Greek | most beautiful |
| Calixto | Latin | a chalice |
| Callis | Latin | cup |
| Calum | Scottish | Dove. |
| Calvert | Old English | A calf herder. |
| Calvin | Latin | The little bald one. |
| Calvine | The little bald one. | |
| Cam | Vietnamese, English | orange fruit, sweet, beloved, referring to the sun |
| Camden | Gaelic | From the winding valley. |
| Cameron | Scottish Gaelic | A crooked nose. From an old Scottish surname. |
| Camille | Latin | Virginal, unblemished character. Also from a Roman family name. A boy or girl's name. |
| Camillo | From Shakespeare's play Winter's Tale. | |
| Camlin | Celtic | crooked line |
| Campbell | Scottish Gaelic | A crooked mouth. The name of one of the great Scottish highland clans. |
| Candan | Turkish | sincerely |
| Candidius | From Shakespeare's play Antony & Cleopatra. | |
| Cane | Gaelic | An old surname. |
| Canice | Irish Gaelic | The handsome one. The name of several early saints. |
| Cannon | Kannon, Canon | |
| Canute | Old Norse | A knot. The name of several Danish kings. |
| Capers | ||
| Caphis | From Shakespeare's play Timon of Athens. | |
| Capucius | From Shakespeare's play Henry VIII. | |
| Capulet | From Shakespeare's play Romeo & Juliet. | |
| Caradoc | Celtic/Welsh | Beloved or amiable. |
| Carden | Celtic | from the black fortress |
| Cardew | Cornish/Welsh | The black fort. |
| Carel | Dutch | A free man. |
| Carey | Irish/Celtic/Cornish | Irish: The name of a castle. Celtic: From the river. Cornish: The loved one. A boy or girl's name. |
| Carl | German | A free man. |
| Carleton | Carl's town or farmer's town. | |
| Carlin | Cornish/IrishGaelic | Cornish: From the fort by the pool. Irish Gaelic: The little champion. A boy or girl's name. |
| Carlisle | Old English | The place of the fort. |
| Carlo | Italian | A free man. |
| Carlos | Portuguese/Spanish | A free man. |
| Carlton | Old English | From the settlement of the free peasants. |
| Carlyle | Old English | Carl's island |
| Carlyon | Cornish | From the slate earthworks. |
| Carmelo | Hebrew | From the garden. After mount Carmel in the holy land. |
| Carne | Cornish | A pile of rocks. |
| Carnelian | The name of a gemstone. A boy or girl's name. | |
| Carr | Old Norse | From the marshland. Also see Carson. |
| Carrick | Irish Gaelic | A rocky cliff or cape. |
| Carrington | Old English | beautiful |
| Carroll | Irish Gaelic | A fierce warrior. |
| Carson | Old English | From the marshland. Son of Carr. |
| Carsten | German | A follower of Christ. A Christian. |
| Carsyn | From the marshland. Son of Carr. | |
| Carter | Old English | A cart driver or maker. |
| Carvell | Old French | The marshy estate, or the estate of the spearman. |
| Carver | Old English | Wood carver. |
| Carwyn | Welsh | Blessed love. |
| Cary | Irish/Celtic/Cornish | Irish: The name of a castle. Celtic: From the river. Cornish: The loved one. A boy or girl's name. |
| Case | Old French | chest |
| Casey | Irish Gaelic | The vigilant one. A boy or girl's name. |
| Casimir | Old Slavonic | The great destroyer. |
| Caspar | Persian | The treasurer. The name of one of the three wise men in the new testament. Also see Gaspar and Jasper. |
| Casper | Persian | treasurer |
| Cassidy | Irish Gaelic | The clever or ingenious one. |
| Cassio | From Shakespeare's play Othello. | |
| Cassius | Latin | Vain. |
| Castel | Spanish | belonging to a castle |
| Cathal | Irish Gaelic | A battle ruler. |
| Cathan | Irish Gaelic | Of the battle. Also see Kane. |
| Cathmor | Irish Gaelic | A great warrior. |
| Cato | Latin | The wise one. |
| Caton | Spanish | knowledgable, wise |
| Cavan | Irish Gaelic | The handsome one. |
| Cayden | Gaelic | spirit of battle |
| Ceasar | Latin | to cut |
| Cecil | Latin | The blind one. |
| Cedric | English | Chief. Invented in the early 1800s by Sir Walter Scott for a character in Ivanhoe. |
| Cemal | Arabic | Perfect. |
| Cengis | Turkish | |
| Cerimon | From Shakespeare's play Pericles. | |
| Cesar | French | The name of the famous Roman emperor. |
| Chad | Old English | Battle, warrior. From the name of a 7th-century saint. |
| Chadwick | Old English | Battle, warrior. |
| Chahaya | Indonesian | Light. |
| Chaika | Hebrew | life |
| Chaim | Hebrew | Life. |
| Chal | English | boy, son |
| Chale | Spanish | strong and manly |
| Challis | Old French | A ladder or stairs. |
| Chalmers | Scottish | son of the lord |
| Chaman | Hindu | |
| Chan | Chinese | A Chinese clan name. |
| Chance | Old French | A church official or chancellor. A boy or girl's name. |
| Chancellor | Keeper of records, secretary. | |
| Chancey | Old French | A church official or chancellor. |
| Chandan | Sanskrit | Of the Sandalwood tree. |
| Chander | Cesar, Cezar | |
| Chandler | Old French | Candle maker. |
| Chandra | Sanskrit | A shining moon. A boy or girl's name. |
| Chane | Hindu, Swahili | name of a god, dependability |
| Chaney | Old French | From the Oak grove. |
| Channing | Old French | A canon. |
| Chapal | Hindu | |
| Chapin | Old French | clergyman |
| Chapman | Old English | A merchant or trader. |
| Charan | Hindu | |
| Charles | Teutonic | Manly, full grown. |
| Charleton | Old English | From the settlement of the free peasants. |
| Charlton | Old English | From the settlement of the free peasants. |
| Chas | Teutonic | Manly, full grown. |
| Chase | Old French | The hunter. |
| Chata | African | an ending |
| Chatillon | From Shakespeare's play King John. | |
| Chaucer | Old French | A bootmaker. |
| Chauncey | Old French | A church official or chancellor. |
| Chayton | Sioux | falcon |
| Chen | Chinese | Great or vast. |
| Cheney | Old French | From the Oak grove. |
| Cherokee | Native American | The name of a tribe. |
| Chester | Latin | A Roman site or camp. Also the name of an English city. |
| Chet | Thai | A brother. |
| Chetan | Hindu | |
| Chetwin | Old English | From the cottage on the winding path. |
| Chevalier | French, Old English | knight, chase, hunt |
| Chevy | French | From chevalier, meaning knight. |
| Cheyenne | Native American | A tribe. Also a city in the USA. |
| Cheyney | Old French | From the Oak grove. |
| Chiamaka | African | God is splendid |
| Chico | Teutonic | A free man. |
| Chike | African | power of god |
| Chilton | Old English | From the children's farm. |
| Chin | Korean | The precious one. |
| Chinmay | Hindu | |
| Chintu | Hindu | |
| Chiranjeev | Hindu | ?Chiarina, Ciaira |
| Chiron | Greek | A wise teacher. |
| Chrirag | Hindu | |
| Chris | Bearing Christ. The patron saint of travellers. Also see Christian. | |
| Christian | Latin | A follower of Christ. A Christian. A boy or girl's name. |
| Christie | Irish/Scottish | A follower of Christ, a Christian. A boy or girl's name. |
| Christmas | Old English | Born at Christmas time. A boy or girl's name. |
| Christopher | Greek | Bearing Christ. The patron saint of travellers. Also see Christian. |
| Christos | Greek | Christ |
| Christy | Irish/Scottish | A follower of Christ, a Christian. A boy or girl's name. |
| Chrysander | Greek | A golden man. |
| Chuck | Teutonic | Manly, full grown. |
| Chuckie | Teutonic | A free man. |
| Chung | Chinese | The wise one. |
| Churchill | Old English | From the church on the hill. |
| Cian | Irish Gaelic | Ancient. Also see Keane. |
| Ciaran | Irish | Dark, black. |
| Cicero | Latin | Historian. Also the name of a famous Roman statesman and orator. |
| Ciceron | Latin | chickpea |
| Ciel | French | from heaven |
| Ciprian | Latin | A man from the island of Cyprus. |
| Ciprien | French | A man from the island of Cyprus. |
| Ciro | Italian | The name of the founder of the Persian empire. From the name Cyrus. |
| Clachas | From Shakespeare's play Troilus & Cressida | |
| Clancy | Irish Gaelic | A red or ruddy warrior. |
| Clarence | Latin | Clear, luminous. |
| Clark | Old French | A cleric or scholar. Also see Cleary. |
| Clarke | A cleric or scholar. Also see Cleary. | |
| Claude | Latin | The lame one. |
| Claudio | Italian/Spanish | The lame one. |
| Claudius | German | The lame one. |
| Claus | Dutch/German | The victory of the people. |
| Clay | Old English | From the clay. |
| Clayland | From the clay. | |
| Clayton | Old English | Town on clay land. |
| Cleary | Irish Gaelic | A clerk or scholar. Also see Clark. |
| Cledwyn | Welsh | Rough but blessed. |
| Clem | Gentle, merciful. | |
| Clemens | Gentle, merciful. From the name Clement. | |
| Clement | Latin | Gentle, merciful. |
| Cleon | Greek | The famous one. |
| Cleve | Old English | From the hilly place, or the place of cliffs. |
| Cleveland | Old English | Land of high cliffs. |
| Cliff | From the ford by the cliff or slope. | |
| Clifford | Old English | From the ford by the cliff or slope. |
| Clifton | Old English | From a town near a cliff. |
| Clint | The place on the headland. | |
| Clinton | Old English | The place on the headland. |
| Clitus | From Shakespeare's play Julius Caesar. | |
| Clive | Old English | Cliff. |
| Cloten | From Shakespeare's play Cymbeline. | |
| Clovis | Teutonic | A famous warrior. |
| Clunes | Scottish Gaelic | A resting-place, or meadow. |
| Clyde | Scottish | The name of a river. |
| Coalan | Celtic | slender |
| Cobar | Aboriginal | Burnt earth. |
| Cobden | Old English | From the hill with a knob. |
| Cobweb | From Shakespeare's play Midsummer-Night's Dream. | |
| Cody | Old English | A pillow or cushion. A boy or girl's name. |
| Cohn | Greek | The victory of the people. |
| Colbert | Teutonic | A bright seafarer. |
| Colby | Old Norse | From the dark country. |
| Cole | Old English/Teutonic | Dark and swarthy. |
| Coleman | Teutonic/Latin | Tuetonic: Dark. Latin: Like a dove. Also see Calum and Columba. |
| Colin | Fire. Also see Cohn. | |
| Collin | Fire. Also see Cohn. | |
| Colman | Little dove. | |
| Colon | Spanish | dove |
| Coltin | Colt, Kolt | |
| Colton | Old English | From the dark town. |
| Columba | Latin | Dove-like. The name of a 6th-century Irish saint. Also see Calum and Coleman. A boy or girl's name. |
| Coman | Arabic | noble |
| Comfort | Latin | strengthen |
| Cominius | From Shakespeare's play Coriolanus. | |
| Compton | Old English | From the farm in the valley. |
| Conall | Celtic | As strong as a wolf. |
| Conan | Irish Gaelic | Wise and intelligent. |
| Condon | Celtic | the dark-haired wise man |
| Conlan | Irish Gaelic | The hero. |
| Conley | Hero. | |
| Conn | Irish Gaelic | A chief. Also used as a diminutive of Connor. |
| Conner | Wise. | |
| Connley | Hero. | |
| Connor | Irish Gaelic | A strong will. |
| Conor | A strong will. | |
| Conrad | Teutonic | Bold, wise counsellor. From the name Conrad and Curtis. |
| Conrade | From Shakespeare's play Much Ado About Nothing. | |
| Conroy | Irish Gaelic | Wise. |
| Constantine | Latin | Firm, constant. |
| Conway | Welsh/Irish | Welsh: Holy water. Irish: A yellow hound. |
| Cooper | Middle English | Barrel maker. |
| Coorain | Aboriginal | The wind. Also a NSW placename. |
| Corban | Greek | a gift devoted to God |
| Corbett | Old French | A raven. |
| Corcoran | Gaelic | of reddish complexion |
| Cordell | Old French | A rope maker. |
| Corey | Celtic/Gaelic | Dweller in the hollow. A boy or girl's name. |
| Corin | Cornish/Latin | Cornish: From the corner. Latin: The name of a Roman deity, possibly meaning a spear. Also from Shakespeare's play As You Like It. A boy or girl's name. |
| Cormac | Irish Gaelic | The lad of the chariot. |
| Cornelian | The name of a gemstone. A boy or girl's name. | |
| Cornelius | Latin | Horn-coloured. |
| Cornell | Horn-coloured. | |
| Cort | Old German | bold |
| Corwin | Old French | A friend of the heart. |
| Cory | Helmet. A boy or girl's name. | |
| Cosmo | Greek | Perfect order, harmony. |
| Costard | From Shakespeare's play Love's Labour's Lost. | |
| Coty | English | old house |
| Court | From Shakespeare's play Henry V. | |
| Courtland | Old English | From the court land. |
| Courtney | Old French | The short-nosed one, or frons a placename. A boy or girl's name. |
| Craig | Scottish Gaelic | A rock or crag. |
| Crandon | Old English | From the hill of the cranes. |
| Cranley | Old English | From the meadow of the cranes. |
| Cranmer | From Shakespeare's play Henry VIII. | |
| Cranog | Welsh | A heron. |
| Crawford | Old English | From the ford with the crows. |
| Creighton | Near the creek. | |
| Crewe | Old English | Stepping stones or a ford. An English placename. |
| Crisiant | Welsh | Like a crystal. A boy or girl's name. |
| Crispin | Latin | Curly-haired. St Crispin was a 3rd-century martyr. |
| Cristian | Latin | A follower of Christ. A Christian. |
| Cristiano | Italian | A follower of Christ. A Christian. |
| Cristo | Spanish | Bearing Christ. From the name Christopher. |
| Cromwell | Old English | From the winding stream. |
| Cronan | Irish Gaelic | The swarthy one. |
| Crosby | Old Norse | From the village with the cross. |
| Csaba | Hungarian | from mythology, sheperd, wanderer |
| Cseke | Hungarian | puller, carrier |
| Csenger | Hungarian | |
| Csepel | Hungarian | young forest |
| Csombor | Hungarian | |
| Csongor | Hungarian | hunting bird |
| Ctirad | Czech | |
| Cuba | The name of a Caribbean country. | |
| Cubert | Cornish | A Celtic saint and a placename. |
| Cullen | Old French | Handsome. |
| Cupid | Latin | Desire, passion. The ancient roman God of love, and son of Venus. |
| Curan | From Shakespeare's play King Lear. | |
| Curio | From Shakespeare's play Twelfth Night. | |
| Curnow | Cornish | From Cornwall. |
| Curran | Irish Gaelic | An old family name. |
| Currier | Old English | churn |
| Curry | A marsh or a spice. | |
| Curt | Teutonic | Bold, wise counsellor. From the name Conrad and Curtis. |
| Curtis | Old French | Courteous. |
| Cuthbert | Old English | Brilliant. |
| Cutler | Knife maker. | |
| Cutter | Gem cutter. | |
| Cy | Persian | The name of the founder of the Persian empire. From the name Cyrus. |
| Cymbeline | From Shakespeare's play Cymbeline. | |
| Cynfor | Welsh | A great chief. |
| Cynric | Old English | Of kingly lineage. |
| Cyprian | Latin | A man from the island of Cyprus. |
| Cyrano | Greek | A man from Cyrent an ancient Greek colony in North Africa. |
| Cyric | Celtic | |
| Cyril | Greek | Lordly. |
| Cyrus | Persian | The name of the founder of the Persian empire. |