In law, one of the tests that must generally be met before granting of an injunction, writ, temporary restraining order or other form of positive judicial action.

To meet the irreparable harm test the plaintiff must show that if the court does not act the resulting damage will not be curable by monetary compensation -- the harm will be irreparable

Examples of irreparable harm might include bodily injury, illness, or death; damage to a company's reputation; loss or damage to property with a priceless personal value -- for instance family photo albums.

In seeking judicial relief based on irreparable harm, the plaintiff may ask the court to force a defendant to act - or to cease action. There are literally countless situations that can lead to irreparable harm.