| Meaning | right-handed, skilled |
| Origin | Modern |
| Gender | Boy |
| Popularity | Moderate |
| Length | 3 |
| Syllables | 1 |
| Syllabification | Dex |
Cool, crisp, and impossibly confident—this three-letter name punches way above its weight class. There's an undeniable swagger in its sound, suggesting someone quick-witted, sharp, and always ready for adventure. The name feels vintage and futuristic simultaneously, equally at home in a detective novel or a sci-fi story. Its brevity is deliberate and powerful, stripping away anything unnecessary to reveal pure, concentrated personality. Parents who choose this option appreciate efficiency and impact, favoring bold simplicity over elaborate decoration. The hard X gives it an edge that's distinctive and memorable, ensuring it stands out in any setting. It's the kind of name that doesn't need explanation or embellishment—it simply is, complete and self-assured. The vintage charm links to classic nicknames while feeling perfectly modern and current. There's a rakish quality here, hinting at someone who takes life on their own terms. Despite its compact size, it carries substantial character and presence. This selection works for families seeking maximum impact with minimal fuss.
| De |
| Ex |
| Dexy |
| DJ |
| Dex Shepard | American actor and comedian |
| Dex Fowler | British musician and songwriter |
| Dex Walker | Australian athlete |
| Dex Johnson | American businessman |
| Dex Turner | Canadian author |
| Dex Mitchell | British scientist |
| Dex Patel | Indian entrepreneur |
| Dex Nguyen | Vietnamese chef |
| Dex Rodriguez | Puerto Rican artist |
| Dex Chang | Taiwanese actor |
| Dex Taylor | Australian filmmaker |
| Dex Li | Chinese mathematician |
| Dex Martin | American politician |
| Dex Brown | British journalist |
| Dex Smith | American athlete |
| Dex Williams | Canadian actor |
| Dex King | British musician |
| Dex Davis | American lawyer |
| Dex Hall | Australian engineer |
| Dex Garcia | Mexican musician |
| Dex Morgan | Character from the TV show "Home and Away" |
| Dex Parios | Character from the TV series "Stumptown" |
| Dex Dogtective | Character from the animated film "Foodfight!" |
| Dex Stewart | Character from the animated series "SWAT Kats - The Radical Squadron" |
| Dex Wilden | Character from the novel "The Bone Season" by Samantha Shannon |
| Dex Fargo | Character from the video game "Cyberpunk 2077" |
| Dex Starr | A fictional cat character from DC Comics |
| Dex Zeng | Character from the TV series "Harrow" |
| Dex Slaveship | Character from the novel "The Hunt for Red October" by Tom Clancy |
| Dex Foley | Character from the TV series "The Adventures of Pete & Pete" |
| Dex Delany | Character from the TV series "The Blacklist" |
| Dex Wilson | Character from the video game "Deus Ex - Human Revolution" |
| Dex Green | Character from the TV series "CSI - NY" |
| Dex Myers | Character from the TV series "The Following" |
| Dex Ter | Character from the TV series "Earth 2" |
| Dex Loew | Character from the TV series "Lie to Me" |
| Dex Wheeler | Character from the TV series "Fangbone!" |
| Dex Dexter | Character from the animated series "The Legend of Tarzan" |
| Dex Sawney | Character from the TV series "Time Trax" |
| Dex Flynn | Character from the video game "Watch Dogs" |