Jowan maana ya jina bora: Bahati, Ubunifu, Kisasa, Kirafiki, Temperament. Pata Jowan maana ya jina.
Maccallum maana ya jina la juu: Furaha, Ubunifu, Kazi, Wenye uwezo, Kubwa. Pata Maccallum maana ya jina la jina.
Jowan asili ya jina la kwanza. Aina ya Cornish John. Pata Jowan asili ya jina la kwanza.
Maccallum asili. Kutoka Gaelic Mac Coluim maana ya "mwana wa Columba". Pata Maccallum asili.
Majina ya jina la Jowan 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, 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, 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. Pata Jowan kwa lugha zingine.
Majina ya jina la Maccallum katika nchi tofauti na lugha tofauti: Coleman, Colombo, Colón, Columbo. Pata Maccallum kwa lugha zingine.
Majina ya kawaida yenye jina la mwisho Maccallum: Estes, Tommy, Jan, Dwain, Perry, Ján. Pata Majina yanayotembea na Maccallum.
Utangamano wa Jowan na Maccallum ni 81%. Pata Utangamano wa Jowan na Maccallum.