Around 40 windows were smashed at the weekend at the old Mearns Community Campus with police appealing for information.
The windows were damaged at the school late on Sunday night with shards of glass strewn on the ground.
Inspector McPhail said: “We have received a report about broken windows at the old Mearns Academy site and our enquiries are ongoing. If anyone has any information about this, I would encourage them to speak to us.”
Mearns Community Council heard during their police report that the vandals maybe former pupils.
The officer said: “We have had a couple of phonecalls about this and it appears that students that wouldn’t go to school when they were there now can’t seem to get away from the place.”