Siwan incazelo engcono kakhulu yegama: Unika, Esebenzayo, Ujabule, Nobungane, Isimo sengqondo. Thola Siwan kusho igama.
Siwan imvelaphi yegama lokuqala. Welsh form of Joan. Thola Siwan imvelaphi yegama lokuqala.
Amagama afanayo for Siwan emazweni ahlukene nezilimi ezahlukene: 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. Thola Siwan kwezinye izilimi.
Amagama avame kakhulu ngegama lomsebenzisi Heth: Jessie, Melda, Iola, Elias, Kim, Éliás, Elías. Thola Amagama ahamba ne- Heth.