Iain kacha mma aha pụtara: Enyi na enyi, Enyịn, Obodo, Kechioma, Eji obi ụtọ. Nweta Iain pụtara aha.
Caoile kacha mma aha nna pụtara: Oge a, Enyi na enyi, Emesapụ aka, Eru, Oké njọ. Nweta Caoile pụtara aha nna.
Iain si malite aha mbụ. Scottish form of John. Nweta Iain si malite aha mbụ.
Agakọta aha maka Iain na mba dị iche iche na-asụ asụsụ: 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, Ian, Iancu, Ianto, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Ionel, Ionuț, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Iwan, Jaan, Jānis, Jack, Jackin, Jake, 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, 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. Nweta Iain na ndị ọzọ asụsụ.
Kasị nkịtị surnames na aha Iain: Girdwood, Banda, Macmillan, Muir, Bester. Nweta List of surnames na aha Iain.
Kasị nkịtị aha na aha ikpeazụ Caoile: Jackie, Thea, Bernie, Kristle, Dante. Nweta Aha na-aga na Caoile.
Ndakọrịta nke Iain na Caoile bụ 70%. Nweta Ndakọrịta nke Iain na Caoile.