Erin-Ile is a town and agrarian community in the Oyun LGA of Kwara State, Nigeria.
Erin-Ile was founded around 1225AD by prince Odumasa Apayaan (the first Elerin) and other warriors such as Olowe and others.
Erin Ile shares boundaries with Ilemona, Irra, Offa, Eku-Apa, Ipee and Igosun all in Kwara State and Oyan, Ila Orangun and Ila Odo in Osun State.
[citation needed] The historical origin of Erin Ile revolves around Odumosa Apaayan, an illustrious Ife Prince who's a renowned Hunter and his younger brother, Alawode Arebiope, both of them children of Obalufon Alayemore and grandchildren of King Obalufon Ogbogbodirin of Ile Ife.
Erin-Ile have been in several conflicts with neighboring town Offa over land for several years since 1973 when the Supreme Court first ruled on the issue.