Initially called Eastwood College, the school was founded in 1973 by Amine M. Khoury in Kafarshima, Lebanon.

During the Lebanese civil war, the school was relocated to an area on the outskirts of Beirut called Mansourieh where it has remained.

The school is still in the candidacy phase for the IB Middle Years Programme.

[citation needed] EIS (formally known as Eastwood College) led Lebanese schools in integrating technology throughout its educational environment, in many aspects of the curriculum replacing physical books with interactive books on tablets.

[3] Eastwood International School campus is situated on the hills overlooking Beirut.