Ghjuvan kacha mma aha pụtara: Eji obi ụtọ, Enyịn, Emesapụ aka, Oge a, Obodo. Nweta Ghjuvan pụtara aha.
Gregas kacha mma aha nna pụtara: Enyịn, Eru, Enyi na enyi, Okike, Oké njọ. Nweta Gregas pụtara aha nna.
Ghjuvan si malite aha mbụ. Corsican form of John. Nweta Ghjuvan si malite aha mbụ.
Agakọta aha maka Ghjuvan na mba dị iche iche na-asụ asụsụ: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, Gian, Gianni, Giannino, Giannis, Giovanni, Gjon, Hampus, Hank, Hanke, Hankin, Hann, Hanne, Hannes, Hannu, Hans, Hasse, Honza, Hovhannes, Hovik, Hovo, Iain, Ian, Iancu, Ianto, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Ionel, Ionuț, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Iwan, Jaan, Jānis, Jackin, Ján, Jancsi, Janek, Janez, Jani, Janika, Jankin, Janko, Janne, Jannick, Jannik, Jan, Jan, János, Janusz, Jean, Jeannot, Jehan, Jehohanan, Jens, Jo, João, Joannes, Joan, Joãozinho, Joĉjo, Johan, Johanan, Johann, Johannes, Johano, John, Johnie, Johnnie, Johnny, Jón, Jonas, Jone, Joni, Jon, Jon, Jóannes, Jóhann, Jóhannes, Joop, Jouni, Jovan, Jowan, Juan, Juanito, Juha, Juhán, Juhan, Juhana, Juhani, Juho, Jukka, Jussi, Keoni, Keshaun, Keshawn, Nelu, Nino, Ohannes, Rashaun, Rashawn, Seán, Sean, Shane, Shaun, Shawn, Shayne, Siôn, Sjang, Sjeng, Vanni, Vano, Vanya, Xoán, Xuan, Yahya, Yan, Yanick, Yanko, Yann, Yanni, Yannic, Yannick, Yannis, Yehochanan, Yianni, Yiannis, Yoan, Yochanan, Yohanes, Yuhanna, Zuan, Žan. Nweta Ghjuvan na ndị ọzọ asụsụ.
Kasị nkịtị aha na aha ikpeazụ Gregas: Dean, Ezekiel, Adrian, Myron, Nickolas, Adrián. Nweta Aha na-aga na Gregas.
Ndakọrịta nke Ghjuvan na Gregas bụ 75%. Nweta Ndakọrịta nke Ghjuvan na Gregas.