Jānis kacha mma aha pụtara: Eru, Kechioma, Obodo, Enyi na enyi, Enyịn. Nweta Jānis pụtara aha.
da Costa kacha mma aha nna pụtara: Eji obi ụtọ, Eru, Ifịk, Okike, Oge a. Nweta da Costa pụtara aha nna.
Jānis si malite aha mbụ. Latvian form of John. Nweta Jānis si malite aha mbụ.
Aha ikpeazụ da Costa kasị nkịtị na Angola, Brazil, East Timor, Guinea-Bissau, Mozambique. Nweta da Costa aha nna na-agbasa.
Agakọta aha maka Jānis 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, Ianto, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Ionel, Ionuț, Iván, Ivan, Ivane, Ivano, Ivica, Ivo, Iwan, Jaan, 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 Jānis na ndị ọzọ asụsụ.
Kasị nkịtị surnames na aha Jānis: Lebaron, Wansor, Fowlston, Kallemeres, Cavender. Nweta List of surnames na aha Jānis.
Kasị nkịtị aha na aha ikpeazụ da Costa: Manuel, John. Nweta Aha na-aga na da Costa.
Ndakọrịta nke Jānis na da Costa bụ 76%. Nweta Ndakọrịta nke Jānis na da Costa.