a case of mistaken identity

a case of mistaken identity

An instance in which one is thought or assumed to be someone else. Officer, this is a case of mistaken identity—I can assure you that I did not rob anyone!
See also: case, identity, mistaken, of

case of mistaken identity

the incorrect identification of someone. I am not the criminal you want to arrest. This is a case of mistaken identity.
See also: case, identity, mistaken, of