St. Brutus’s Secure Centre for Incurably Criminal Boys

St. Brutus’s is a boarding school, presumably somewhere in England, that we know absolutely nothing about aside from its name (and that might not even actually exist). We know the name because Vernon Dursley tells neighbours and relatives that it’s the school Harry attends, so they don’t wonder about his strange behaviour or disappearances. He forces Harry to stick to the story as well, at least when he’s living on Privet Drive (PA2).