Iwan kacha mma aha pụtara: Eru, Enyi na enyi, Eji obi ụtọ, Obodo, Kechioma. Nweta Iwan pụtara aha.
Sontheimer kacha mma aha nna pụtara: Okike, Emesapụ aka, Enyi na enyi, Oge a, Ifịk. Nweta Sontheimer pụtara aha nna.
Iwan si malite aha mbụ. Welsh form of John and a Polish form of Ivan. Nweta Iwan si malite aha mbụ.
Transcription ma ọ bụ otú kpo aha mbụ Iwan: EE-wan (na Welsh), EE-vahn (na Polish). Olee otú ịkpọ Iwan.
Agakọta aha maka Iwan 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, Iain, Ian, Iancu, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Ionel, Ionuț, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Jaan, Jānis, Jack, Jackin, Jake, Ján, Jancsi, Janek, Janez, Jani, Janika, Jankin, Janko, Janne, Jannick, Jannik, Jan, Jan, János, 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, 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 Iwan na ndị ọzọ asụsụ.
Kasị nkịtị surnames na aha Iwan: Markun, Sunawan. Nweta List of surnames na aha Iwan.
Kasị nkịtị aha na aha ikpeazụ Sontheimer: Arline, Perry, Stan, Jose, Theresia, José. Nweta Aha na-aga na Sontheimer.
Ndakọrịta nke Iwan na Sontheimer bụ 76%. Nweta Ndakọrịta nke Iwan na Sontheimer.