Jackin incazelo engcono kakhulu yegama: Okungafani, Ngokucophelela, Unamandla, Isimo sengqondo, Nobungane. Thola Jackin kusho igama.
Leo izincazelo zegama elihle kakhulu: Isimanje, Unika, Ngokucophelela, Okungafani, Nobungane. Thola Leo incazelo yesibongo.
Jackin imvelaphi yegama lokuqala. Variant of Jankin. Thola Jackin imvelaphi yegama lokuqala.
Igama lokugcina Leo elivame kakhulu Iziqhingi zaseFaroe, I-Papua New Guinea, I-Saint Helena, i-Ascension ne-Tris, I-Vanuatu. Thola Leo ukusakazwa kwesibongo.
Amagama afanayo for Jackin emazweni ahlukene nezilimi ezahlukene: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, Ghjuvan, Gian, Gianni, Giannis, Giovanni, Gjon, Hanke, Hanne, Hannes, Hannu, Hans, Hovhannes, Iain, Ian, Iefan, Ieuan, Ifan, Ioan, Ioane, Ioann, Ioannes, Ioannis, Iohannes, Ion, Iván, Ivan, Ivane, Ivano, Iwan, Jaan, Jānis, Jack, Jackie, Jake, Ján, Jancsi, Janek, Janez, Jani, Janika, Janko, Janne, Jannick, Jannik, Jan, János, Janusz, Jean, Jeannot, Jehan, Jehohanan, Jens, Jo, João, Joannes, Joan, Joãozinho, Joĉjo, Jock, Jockie, Jocky, 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, Rashaun, Rashawn, Seán, Sean, Seoc, Shane, Shaun, Shawn, Shayne, Siôn, Sjang, Sjeng, Vanni, Xoán, Xuan, Yahya, Yanick, Yann, Yanni, Yannic, Yannick, Yannis, Yehochanan, Yianni, Yiannis, Yoan, Yochanan, Yohanes, Yuhanna, Zuan, Žan. Thola Jackin kwezinye izilimi.
Amagama avame kakhulu ngegama lomsebenzisi Leo: Leo, Lip Wee, Rakendu, Leonardo, Manjuparkavi, Léo. Thola Amagama ahamba ne- Leo.
Ukuhambisana kwe- Jackin kanye Leo kuyinto 79%. Thola Ukuhambisana kwe- Jackin kanye Leo.