Kian is a masculine name of Persian origin, widely used in Iran and also gaining popularity in Western countries. It means king, realm, or foundation. Historically, Kian was a title for kings or noblemen in ancient Persia. It is a relatively common name in Iran today. While not among the top 100 in the US, it has seen a steady rise in usage. A famous person with a similar name is Kian Egan from the Irish band Westlife.