Rittmaster (German: Rittmeister, lit. 'riding/cavalry master')[1] is usually a commissioned officer military rank used in a few armies, usually equivalent to Captain. Historically it has been used Germany, Austria-Hungary, Scandinavia, and some other countries.
A rittmeister is typically in charge of a squadron (a company-sized unit called a "troop" in the United States, as opposed to the U.S. cavalry squadron of larger battalion size), and is the equivalent of a Hauptmann rank (or captain in most army branches).[2][3]
Infantry: Hauptmann... Cavalry: Rittmeister