Boy name origins & meanings Hebrew : The supplanter Boy name variations Jacob Jakob Jacobo Jacopo Jacoba Jacobson Jacobi Jacobine Jacobina Jayme Jacques Jacinto Jascha Jake Jackob 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 (Ashkenazic), Czech, and Slovak : from the personal name Jakub, from Hebrew Jahaqóbh (see Jacob).