Koba kacha mma aha pụtara: Kechioma, Eji obi ụtọ, Enyịn, Iwe, Oge a. Nweta Koba pụtara aha.
Guella kacha mma aha nna pụtara: Emesapụ aka, Oge a, Oké njọ, Eji obi ụtọ, Kechioma. Nweta Guella pụtara aha nna.
Koba si malite aha mbụ. Diminutive of Iakob. Nweta Koba si malite aha mbụ.
Agakọta aha maka Koba na mba dị iche iche na-asụ asụsụ: Akiba, Akiva, Cobus, Coby, Coos, Giacobbe, Giacomo, Hagop, Hakob, Hemi, Iacobus, Iacomus, Iacopo, Iago, Iakobos, Iakopa, Ib, Jákob, Jaagup, Jaak, Jaakko, Jaakob, Jaakoppi, Jaap, Jacky, Jacob, Jacobo, Jacobus, Jacó, Jacopo, Jacques, Jae, Jago, Jaime, Jaka, Jakab, Jake, Jakes, Jakob, Jakov, Jakša, Jakub, Jákup, James, Jamey, Jamie, Japik, Jaša, Jaska, Jaume, Jaumet, Jay, Jaycob, Jaymes, Jeb, Jem, Jemmy, Jeppe, Jim, Jimi, Jimmie, Jimmy, Jockel, Jokūbas, Kapel, Kimo, Kobe, Kobus, Koby, Koos, Koppel, Kuba, Lapo, Séamas, Séamus, Seumas, Shamus, Sheamus, Sjaak, Sjakie, Yaakov, Yago, Yakiv, Yakov, Yakub, Yakup, Yankel, Yaqoob, Yaqub, Yasha. Nweta Koba na ndị ọzọ asụsụ.
Kasị nkịtị aha na aha ikpeazụ Guella: Bob, Crista, Dwain, Mark, Alisia, Márk. Nweta Aha na-aga na Guella.
Ndakọrịta nke Koba na Guella bụ 84%. Nweta Ndakọrịta nke Koba na Guella.