Otto Rothe (6 November 1924 – 9 January 1970) was a German equestrian.
He was born in Samonienen.
He competed in equestrian at the 1952 Summer Olympics in Helsinki, where he won a silver medal in the team eventing, and placed eleventh in the individual contest.
He competed in equestrian at the 1956 Summer Olympics in Stockholm, where he won a silver medal in the team competition in eventing (along with August Lütke-Westhues and Klaus Wagner).