Iefan moelelo wa lebitso le letle: E na le bokhoni, Botsoalle, Lehlohonolo, Bōpo, Ela hloko. Fumana Iefan moelelo oa lebitso.
Hecker lebitso la motumo o motle ka ho fetisisa: E fanang ka, Bōpo, Botsoalle, Lehlohonolo, Mehleng ea kajeno. Fumana Hecker se boleloang ke lebitso.
Iefan tšimoloho ea lebitso la pele. Welsh form of John. Fumana Iefan tšimoloho ea lebitso la pele.
Iefan lebitso la diminuti: Ianto. Fumana Mabitso a marang-rang a Iefan.
Mabitso a sa tšoaneng bakeng sa Iefan linaheng le lipuo tse sa tšoaneng: 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. Fumana Iefan ka lipuo tse ling.
Mabitso a tloaelehileng ka lebitso la ho qetela Hecker: Anastasia, John, Winfred, Rebeca, Karisa. Fumana Mabitso a tsamaeang le Hecker.
Ho lumellana ha Iefan le Hecker ke 83%. Fumana Tšebelisano ea Iefan le Hecker.