Siwan moelelo wa lebitso le letle: E fanang ka, E sebetsang, E thabileng, Botsoalle, Bohale. Fumana Siwan moelelo oa lebitso.
Siwan tšimoloho ea lebitso la pele. Welsh form of Joan. Fumana Siwan tšimoloho ea lebitso la pele.
Mabitso a sa tšoaneng bakeng sa Siwan linaheng le lipuo tse sa tšoaneng: Asia, Chevonne, Gia, Gianna, Giannina, Giovanna, Giovannetta, Hanna, Hanne, Hannele, Hannie, Ioana, Ioanna, Iohanna, Ivana, Jana, Jane, Janessa, Janice, Janina, Janna, Janne, Jannicke, Jannike, Jean, Jeanne, Jehanne, Jennigje, Jo, Joan, Joana, Joanie, Joaninha, Joann, Joanna, Joanne, Joasia, Joetta, Joey, Johana, Johanna, Johanne, Johanneke, Johnna, Jojo, Joleen, Jolene, Jone, Jonelle, Jonette, Joni, Jonie, Jonna, Jóhanna, Jóna, Jovana, Juana, Juanita, Nana, Seona, Seonag, Seònaid, Shauna, Shavonne, Shawna, Sheona, Shevaun, Shevon, Shona, Sìne, Síne, Siobhán, Tajuana, Vanna, Xoana, Yana, Yanka, Yanna, Yoana, Zhanna, Žana. Fumana Siwan ka lipuo tse ling.
Mabitso a tloaelehileng ka lebitso la ho qetela Athani: John. Fumana Mabitso a tsamaeang le Athani.