Iancu maana ya jina bora: Bahati, Kazi, Kubwa, Kisasa, Ukarimu. Pata Iancu maana ya jina.
Havenga maana ya jina la juu: Kisasa, Wenye uwezo, Makini, Tete, Kirafiki. Pata Havenga maana ya jina la jina.
Iancu asili ya jina la kwanza. Kiromania imepungua John. Pata Iancu asili ya jina la kwanza.
Jina la mwisho Havenga la kawaida zaidi . Pata Havenga kutangaza jina la jina.
Majina ya jina la Iancu katika nchi tofauti na lugha tofauti: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, Ghjuvan, Gian, Gianni, Giannis, Giovanni, Gjon, Hanke, Hankin, Hann, Hanne, Hannes, Hannu, Hans, Hovhannes, Hovik, Hovo, Iain, Ian, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Iwan, Jaan, Jānis, Ján, Jancsi, Janek, Janez, Jani, Janika, Janko, Janne, Jannick, Jannik, Jan, Jan, János, Janusz, Jean, 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, Ohannes, Rashawn, Seán, Sean, Shane, Shaun, Shawn, Siôn, Sjang, Sjeng, Van, Vanja, Vanni, Vano, Vanya, Xoán, Xuan, Yahya, Yan, Yanick, Yanko, Yann, Yanni, Yannic, Yannick, Yannis, Yehochanan, Yianni, Yiannis, Yoan, Yochanan, Yohanes, Yuhanna, Zuan, Žan. Pata Iancu kwa lugha zingine.
Majina ya kawaida yenye jina la mwisho Havenga: Norberto, Barend Petrud, Pieter, Johann, Kaleigh, Jóhann. Pata Majina yanayotembea na Havenga.
Utangamano wa Iancu na Havenga ni 73%. Pata Utangamano wa Iancu na Havenga.