Iefan uiga igoa sili: Agavaa, Faauo, Laki, Foafoa, Gauai. Aumai Iefan uiga o le suafa.
Jay uiga faaiu sili: Faauo, Po nei, Matuia, Volatile, Fiafia. Aumai Jay uiga o faaiu.
Iefan amataga o le igoa muamua. Welsh form of John. Aumai Iefan amataga o le igoa muamua.
Iefan igoa diminutives: Ianto. Aumai Nicknames mo Iefan.
Faʻaiu Jay taatele i Wallis ma Futuna. Aumai Jay faaiu faasalalauina.
Igoa tutusa mo Iefan i atunuu ma gagana eseese: 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. Aumai Iefan i isi gagana.
O le tele o igoa tutusa ai ma faaiu Jay: Javier, John, Clarisa, Jeevan, Kumar Jay Shree Ram. Aumai Igoa e aumai faatasi Jay.
Ogatasi o Iefan ma Jay o 80%. Aumai Ogatasi o Iefan ma Jay.