Iefan incazelo engcono kakhulu yegama: Unamandla, Nobungane, Unenhlanhla, Ukudala, Ngokucophelela. Thola Iefan kusho igama.
Aguilera izincazelo zegama elihle kakhulu: Sína, Unika, Esebenzayo, Unamandla, Isimanje. Thola Aguilera incazelo yesibongo.
Iefan imvelaphi yegama lokuqala. Welsh form of John. Thola Iefan imvelaphi yegama lokuqala.
Iefan igama lokunciphisa amagama: Ianto. Thola Ama-namaname we-Iefan.
Igama lokugcina Aguilera elivame kakhulu I-Argentina, I-Chile, I-Paraguay, ESpain, I-Venezuela. Thola Aguilera ukusakazwa kwesibongo.
Amagama afanayo for Iefan emazweni ahlukene nezilimi ezahlukene: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, Ghjuvan, Gian, Gianni, Giannino, Giannis, Giovanni, Gjon, Hampus, Hank, Hanke, Hankin, Hann, Hanne, Hannes, Hannu, Hans, Hasse, Honza, Hovhannes, Hovik, Hovo, Iain, Ian, Iancu, 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, 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. Thola Iefan kwezinye izilimi.
Amagama avame kakhulu ngegama lomsebenzisi Aguilera: Merrilee, Juan, Freddy, Brendon, Magen. Thola Amagama ahamba ne- Aguilera.
Ukuhambisana kwe- Iefan kanye Aguilera kuyinto 76%. Thola Ukuhambisana kwe- Iefan kanye Aguilera.