Diggs

The Wizard of Oz's real name is Oscar Zoroaster Phadrig Isaac Norman Henkle Emmannuel Ambroise Diggs. He was named by his father, who was a politician. This was just too long a name, so after he grew up he called himself Oz from the initials of the first two names. The initials of the other names spell Pinhead, which he did not consider a very appropriate name to be called.