'''Iya''' may refer to:

==People== * Iya Abubakar, Nigerian politician * Iya Arepina, Russian actress * Iya Kiva (b. 1984), Ukrainian poet, translator, journalist, critic * Iya Nacuaa Teyusi Ñaña, Mixtec ruler * Iya Savvina, Soviet actress * Iya Villania, Australian actress

==Places== * Iya, Iran, a village in East Azerbaijan Province, Iran * Mount Iya, volcano in Indonesia * Iya (river), river in Irkutsk Oblast in Russia * Iya Station, railway station in Japan * Iya Valley, valley in Japan

==Other uses== * Iya (mythology) in Lakota mythology * Iyayu language, ISO 639-3 code "iya" * ''Iya,'' the term in the Edo language for the Benin Moat

'''IYA''' may refer to: * International Year of Astronomy (IYA2009)

{{disambig|geo|given name}}