Iefan macnaha magaca ugu wanaagsan: Awoodda u, Saaxiibtinimo, Nasiib, Hal abuur leh, Digtoon. Hel Iefan macnaha magaca.
da Costa macnaha magaca qoys ee ugu fiican: Farxad, Awoodda u, Firfircoon, Hal abuur leh, Casri ah. Hel da Costa macnaha magaca qoyska.
Iefan asal ah magaca koowaad. Welsh form of John. Hel Iefan asal ah magaca koowaad.
Iefan diminutives magaca: Ianto. Hel Naanays for Iefan.
Magaca awoowe da Costa ugu badan ee Angola, Brazil, East Timor, Guinea-Bissau, Mozambique. Hel da Costa la odhan faafo.
Magacyada isku for Iefan in dal iyo luqado kala duwan: 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. Hel Iefan luqado kale.
Inta badan magacyada wadaagaan Magaca awoowe da Costa: Manuel, John. Hel Names in aado da Costa.
Dhignaashada ee Iefan iyo da Costa waa 79%. Hel Dhignaashada ee Iefan iyo da Costa.