Plaque

Plaque may refer to:

Commemorations or awards

 * Commemorative plaque, a plate, usually fixed to a wall or other vertical surface, meant to mark an event, person, etc.
 * Memorial Plaque (medallion), issued to next-of-kin of dead British military personnel after World War I
 * Plaquette, a small plaque in bronze or other materials

Science and healthcare

 * Amyloid plaque
 * Atheroma or atheromatous plaque, a buildup of deposits within the wall of an artery
 * Dental plaque, a biofilm that builds up on teeth
 * A broad papule, a type of cutaneous condition
 * Pleural plaque, associated with mesothelioma, cancer often caused by exposure to asbestos
 * Senile plaques, an extracellular protein deposit in the brain implicated in Alzheimer's disease
 * Skin plaque, a plateau-like lesion that is greater in its diameter than in its depth
 * Viral plaque, a visible structure formed by virus propagation within a cell culture

Other uses

 * Plaque, a rectangular casino token