Worldwide, Jacb (Jacb 
) is a very rare largely boy's, but uncommonly female given name. The forename Jacb is habitual in Sub-Saharan Africa, particularly Tanzania, where it is a very rare boy's name, and Nigeria, where it is a very rare unisex name. Also, Jacb is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jacb | Nigeria, United States, Tanzania, India, France |
Chaime, Diego, Džeimss, Giacomo, Iacob, Iacopo, Jaakko, Jacco, Jaco, Jacob, Jacobo, Jacobus, Jacopo, Jacques, Jacó, Jaime, Jakab, Jakau, Jakez, Jakob, Jakov, Jakow, Jakub, Jakubs, Jakue, Jakób, Jakúb, James, Jaume, Jekabs, Jim, Jockel, Jokūbas, Jákob, Jēkabs, Santiago, Santjago, Séamus, Xacobe, Ya'Acov, Ya'Aqov, Yaacov, Yaakov, Yaaqov, Yacob, Yakau, Yakiv, Yakov, Yakow, Yakub,
Jacb is also a prevalent name for the fictitious and mythical characters: Jacob , the in Genesis, a son of Isaac, also known as Israel; the patriarch of the Israelites, The Qur’an; Thing , the fictional character in Marvel Comics; Jacob Frye , the fictional character in the Assassin's Creed series, Assassin's Creed Syndicate; Jacob Black , the character from Twilight and Jacob Kowalski , the No-Maj in the Harry Potter universe, Fantastic Beasts and Where to Find Them, and in many other works.