Ilen

Ilen may refer to:


 * River Ilen, County Cork, Ireland
 * Ilen Rovers GAA, a Gaelic football club in County Cork, Ireland
 * Ilen School and Network for Wooden Boat Building, a charity in Limerick, Ireland
 * A. K. Ilen (Auxiliary Ketch Ilen), an Irish ship
 * Embet Ilen (c. 1801–1851), Eritrean politician
 * Ilen Church, a church in Trondheim, Norway