A leak diverter for positioning above a suspended ceiling is disclosed. The leak diverter can comprise a liquid collection tray comprising a flexible or substantially rigid sheet of material. The leak diverter can have a drain in flow communication with the liquid collection tray. The leak diverter can comprise a perimeter frame and can be supported by a plurality of support members. The drain can be positioned to extend through either the liquid collection tray or the side barrier and can be positioned above the suspended ceiling. In one embodiment, the width of the leak diverter is less than the standard width of a suspended ceiling panel in order to facilitate installation of the diverter above the suspended ceiling. In another embodiment, the length of the leak diverter may be greater than the standard length or width of a suspended ceiling panel, and may straddle adjacent ceiling panels.