| Meaning | he will laugh, laughter |
| Origin | Hebrew |
| Gender | Boy |
| Popularity | Popular |
| Length | 5 |
| Syllables | 2 |
| Syllabification | I-saac |
Classic yet vibrant, Isaac has weathered centuries while remaining fresh and relevant. This name carries substantial historical and cultural weight without feeling outdated or stuffy. Isaac's two syllables create a pleasant, balanced sound that works beautifully in virtually any context. The name has enjoyed consistent popularity across generations, proving its enduring appeal and timeless quality. Parents appreciate Isaac for its versatility—it's sophisticated enough for formal occasions yet friendly and approachable for everyday use. The name pairs effortlessly with a wide range of middle and last names, making it an adaptable choice for any family. Isaac suggests reliability, warmth, and intelligence, qualities that many hope to nurture in their children. Its familiar sound means people can easily pronounce and spell it, eliminating the frustration that sometimes comes with more unusual names. For families seeking a name with proven staying power and universal appeal, Isaac delivers on all fronts.
| Ike |
| Zac |
| Izzy |
| Issy |
| Isaac Newton | English physicist and mathematician |
| Isaac Asimov | American writer and biochemist |
| Isaac Hayes | American musician and actor |
| Isaac Hempstead Wright | English actor |
| Isaac Mizrahi | American fashion designer |
| Isaac Hanson | American musician |
| Isaac Brock | American musician |
| Isaac Bashevis Singer | Polish-American writer |
| Isaac Hayes III | American music producer |
| Isaac Israels | Dutch painter |
| Isaac Deutscher | Polish-British political theorist |
| Isaac Jogues | French missionary |
| Isaac Kappy | American actor |
| Isaac Julien | British filmmaker and installation artist |
| Isaac Hayes Jr. | American voice actor |
| Isaac Rosenberg | British poet and painter |
| Isaac Watts | English hymn writer |
| Isaac Toussie | American real estate developer |
| Isaac Merritt Singer | American inventor and businessman |
| Isaac Barrow | English mathematician and theologian |
| Isaac Clarke | Dead Space video game series |
| Isaac Lahey | Teen Wolf TV series |
| Isaac Sumdac | Transformers Animated TV series |
| Isaac Mendez | Heroes TV series |
| Isaac Netero | Hunter x Hunter manga/anime |
| Isaac Kleiner | Half-Life video game series |
| Isaac Washington | House of the Dead video game series |
| Isaac Shayden | Supernatural TV series |
| Isaac Reeder | The Magicians book series |
| Isaac Morton | Dexter TV series |
| Isaac Chroner | Children of the Corn film series |
| Isaac O'Connor | The 100 TV series |
| Isaac Godspeed | The Flash comic series |
| Isaac Heller | The Resident TV series |
| Isaac Kenobi | Star Wars Expanded Universe |
| Isaac Parrish | Eureka TV series |
| Isaac Grossman | Homeland TV series |
| Isaac Parker | Westworld TV series |