The headline Grindelwald Attacks was a term popularised by a number of international Wizarding media outlets to describe a series of terrorist attacks perpetuated by the dark wizard Gellert Grindelwald and his followers. These attacks likely involved mass murder.

On one occasion, several Aurors scouted a tower, presumably Nurmengard Castle, using Wand-Lighting Charms to see in the mist. However, they were knocked back in an explosion, something Grindelwald witnessed and presumably triggered.