Ghjuvan moelelo wa lebitso le letle: E thabileng, Ela hloko, E fanang ka, Mehleng ea kajeno, E fokolang. Fumana Ghjuvan moelelo oa lebitso.
van Rooyen lebitso la motumo o motle ka ho fetisisa: Ela hloko, Botsoalle, E sebetsang, E thabileng, E tebileng. Fumana van Rooyen se boleloang ke lebitso.
Ghjuvan tšimoloho ea lebitso la pele. Corsican form of John. Fumana Ghjuvan tšimoloho ea lebitso la pele.
Lebitso la ho qetela van Rooyen le tloaelehileng haholo Namibia, Afrika Borwa. Fumana van Rooyen lebitso la lebitso le fetisetsang.
Mabitso a sa tšoaneng bakeng sa Ghjuvan linaheng le lipuo tse sa tšoaneng: Anže, Deshaun, Deshawn, Ean, Eoin, Evan, Ganix, 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, Jackin, 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, Vanni, Vano, Vanya, Xoán, Xuan, Yahya, Yan, Yanick, Yanko, Yann, Yanni, Yannic, Yannick, Yannis, Yehochanan, Yianni, Yiannis, Yoan, Yochanan, Yohanes, Yuhanna, Zuan, Žan. Fumana Ghjuvan ka lipuo tse ling.
Mabitso a tloaelehileng ka lebitso la ho qetela van Rooyen: Andreas, Warren, Angelique, Jani, Jan, Angélique, Ján. Fumana Mabitso a tsamaeang le van Rooyen.
Ho lumellana ha Ghjuvan le van Rooyen ke 76%. Fumana Tšebelisano ea Ghjuvan le van Rooyen.