| Meaning | rejoice, happy |
| Origin | Latin |
| Gender | Boy |
| Popularity | Moderate |
| Length | 5 |
| Syllables | 2 |
| Syllabification | Cai-us |
Consider Caius for those seeking classical gravitas with an unexpected twist. This Roman name carries centuries of history while remaining refreshingly rare in contemporary settings. The pronunciation offers flexibility—either KY-us or KAI-us—allowing personalization within tradition. Caius exudes intellectual sophistication, suggesting someone destined for academic excellence or philosophical pursuits. It's the type of name that looks impressive on university applications and business cards while maintaining enough character to avoid stuffiness. The ancient pedigree provides depth and substance that trendy names simply cannot match. Caius works particularly well for families appreciating history, literature, or classical studies. Despite its antiquity, it feels modern and distinctive, standing out in a crowd of Jacksons and Aidens. This choice demonstrates confidence and cultivated taste, perfect for parents wanting something truly special without venturing into completely uncharted territory.
| Cai |
| Kay |
| C |
| Cay |
| Caius Caesar | Roman politician and general |
| Caius Martius Coriolanus | Legendary Roman figure |
| Caius Vibius Pansa Caetronianus | Roman consul |
| Caius Ateius Capito | Roman jurist |
| Caius Duilius | Roman consul and naval commander |
| Caius Iulius Verus Maximinus | Roman Emperor |
| Caius Bruttius Praesens | Roman senator |
| Caius Scribonius Curio | Roman statesman |
| Caius Aquilius Gallus | Roman consul |
| Caius Aelius Gallus | Roman poet |
| Caius Asinius Pollio | Roman consul and historian |
| Caius Cestius Gallus | Roman senator |
| Caius Coelius Caldus | Roman orator |
| Caius Cornelius Cethegus | Roman senator |
| Caius Duilius Calvinus | Roman consul |
| Caius Fufius Geminus | Roman consul |
| Caius Gabinius Capito | Roman consul |
| Caius Largius Macedo | Roman consul |
| Caius Licinius Varus | Roman consul |
| Caius Sentius Saturninus | Roman senator |
| Caius Ballad | Final Fantasy XIII-2 |
| Caius Cosades | Elder Scrolls III - Morrowind |
| Caius Ligarius | William Shakespeare's play "Julius Caesar" |
| Caius Marcius | William Shakespeare's play "Coriolanus" |
| Caius Martius | Legend of the Seeker TV series |
| Caius Octavius | TV show "Rome" |
| Caius Ponitius | The Elder Scrolls IV - Oblivion |
| Caius Qualls | Star Ocean - Till the End of Time |
| Caius Raynor | Supernatural TV series |
| Caius Veiovis | Devil May Cry 4 video game |
| Caius Volturi | Twilight Saga |
| Caius Worthington | Skylanders video game series |
| Caius the Shadow Monarch | Yu-Gi-Oh! Trading Card Game |
| Caius Delancré | The Witcher book series |
| Caius Domitius | Asterix comics |
| Caius Fleamont | Harry Potter fanfiction character |
| Caius Fortuna | God Eater 2 video game |
| Caius Pupus | Asterix comics |
| Caius Stan | Doctor Who audio drama character |
| Caius Strom | Guild Wars 2 |