Siwan moelelo wa lebitso le letle: E fanang ka, E sebetsang, E thabileng, Botsoalle, Bohale. Fumana Siwan moelelo oa lebitso.
Fewlass lebitso la motumo o motle ka ho fetisisa: Mehleng ea kajeno, Lehlohonolo, Bōpo, Botsoalle, Ela hloko. Fumana Fewlass se boleloang ke 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 Fewlass: Wilmer, Lakita, Beryl, Clair, Chere. Fumana Mabitso a tsamaeang le Fewlass.
Ho lumellana ha Siwan le Fewlass ke 73%. Fumana Tšebelisano ea Siwan le Fewlass.