Ifan maana ya jina bora: Kazi, Kisasa, Kirafiki, Kubwa, Ukarimu. Pata Ifan maana ya jina.
Duffy maana ya jina la juu: Tete, Ukarimu, Kubwa, Ubunifu, Makini. Pata Duffy maana ya jina la jina.
Ifan asili ya jina la kwanza. Aina ya Welsh John. Pata Ifan asili ya jina la kwanza.
Duffy asili. Iliyotokana na Kiayalandi Ó Dubhthaigh ina maana ya "uzao wa Dubhthach". Their original homeland was Monaghan where the surname is still the most common; they are also from Donegal and Roscommon. Pata Duffy asili.
Ifan jina la kupungua kwa jina: Ianto. Pata Majina ya jina la Ifan.
Jina la mwisho Duffy la kawaida zaidi Ireland, Uingereza. Pata Duffy kutangaza jina la jina.
Majina ya jina la Ifan katika nchi tofauti na lugha tofauti: 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. Pata Ifan kwa lugha zingine.
Majina ya kawaida yenye jina la mwisho Duffy: Maurine, Gavin, Jamel, Carmen, Hilma. Pata Majina yanayotembea na Duffy.
Utangamano wa Ifan na Duffy ni 74%. Pata Utangamano wa Ifan na Duffy.