WIU (disambiguation)

Western Illinois University is a public university in Macomb, Illinois, US.

WIU may also refer to:


 * Wadi International University, in Wadi al-Nasara, Syria
 * Washington International University, an online unaccredited university
 * Webber International University, in Babson Park, Florida, US
 * Wiru language (ISO 639-3: wiu)