Sian or Siyan may refer to: __NOTOC__ People Siân, a Welsh girl's name; list of people with this name
Places Sian, Iran (disambiguation), various places in Iran Sian, Russia, a rural locality in Amur Oblast, Russia Xi'an, China, formerly romanized as Sian Sen (river), Yakutia, Russian Federation Sian, the Ukrainian name of San (river) used in toponymics of Ukraine Other uses Lamborghini Sián FKP 37, an Italian sports car Sian (band), Scottish traditional music band Sian (crater), a crater on Mars Sian language, a Kajang language of Brunei and Sarawak SIANspheric, Canadian band formerly named Sian Stop Islamisation of Norway (, SIAN), a Norwegian anti-Islam group which was established in 2008 Siyan, a Kurdish tribe
See also
Sain (disambiguation) Sihan language, a Papuan language of Papua New Guinea Syan language, a Bantu language spoken in East Africa Syan (disambiguation) Sayan (disambiguation)