Koba kacha mma aha pụtara: Kechioma, Eji obi ụtọ, Enyịn, Iwe, Oge a. Nweta Koba pụtara aha.
Knehans kacha mma aha nna pụtara: Oge a, Ifịk, Kechioma, Eru, Eji obi ụtọ. Nweta Knehans 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 Knehans: Aubrey, Vince, Cyril, Dara, Beatrice, Béatrice. Nweta Aha na-aga na Knehans.
Ndakọrịta nke Koba na Knehans bụ 80%. Nweta Ndakọrịta nke Koba na Knehans.