Sekolah Menengah Kebangsaan Sultan Yussuf (or SYS) is a high school located in Batu Gajah, Perak, Malaysia.

[citation needed] In those days it was difficult to persuade parents in Batu Gajah to educate their children.

Eventually, he gathered 30 children in the school together with three teachers from Taiping.

The people of Batu Gajah cooperated in community spirit gotong royongs and built the school.

For example, in May 2010 a workshop for English teachers was held here,[3] as was the State junior competition dance championship in August 2008.