Boy name origins & meanings Hebrew : The supplanter Boy name variations Jacob Jakob Jacobo Jacopo Jacoba Jacobson Jacobine Jacobina Jayme Jacques Jacinto Jascha Jake Jackob Jakub Jack Jackson Jeb Cob Cobb Giacobo Giacomo Iago Iacovo Yago Yaacov Yacov Yakov Jaccob Jachob Jaco Jacobb Jacub Jaecob Jaicob Jalu Jecis Jeks Jeska Jocek Jock Jocob Jocobb Jokubus Family name origins & meanings Jewish, English, Dutch, and North German : from the Latin genitive Jacobi ‘(son) of Jacob’, Latinized form of English Jacobs and Jacobson or North German Jakobs(en) and Jacobsen.