Siwan eng yaxshi nom ma'nolari: Saxiy, Faol, Quvnoq, Do'st, Temperaturali. Qabul qiling Siwan ismining ma'nosi.
Siwan ismining kelib chiqishi. Welsh form of Joan. Qabul qiling Siwan ismining kelib chiqishi.
Boshqa mamlakatlar va tillarda, Siwan uchun alohida ismlar: 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. Qabul qiling Siwan boshqa tillarda.
Manganiello ismiga ega bo'lgan eng keng tarqalgan ismlar: Joan, Lyda, Wally, Isaiah, Maximo, Máximo. Qabul qiling Manganiello bilan ketadigan ismlar.