Otto

Otto is a Germanic given name derived from the Old High German element aud, meaning wealth or fortune. It was borne by several medieval German kings and Holy Roman Emperors, most notably Otto I, who consolidated imperial power in the tenth century and is often called Otto the Great. The name spread widely across Europe through royal and noble usage and remains common in German-speaking and Scandinavian countries. Related forms include Ottó in Hungarian and Icelandic, and the name is also connected to the broader family of aud-derived names such as Odo and Otho.