Fenelon Falls Secondary School (FFSS) is a public high school located at 66 Lindsay Street in Fenelon Falls, Ontario, Canada.

FFSS was founded around 1827 and the current school building is located on the south side of Fenelon Falls.

Since its erection, the building has gone through a number of renovations, adding a new gymnasium and part of an art wing.

Portables also serve as classrooms located just outside, at the back-right of the school.

A large field and track are situated past the road behind the back of the school, available for physical education classes and sporting events, with nearby tennis courts providing for tennis-oriented physical education lessons.