Mr. Ohtori is a minor character in Revolutionary Girl Utena. He is the true chairman of Ohtori Academy, but during Utena he has fallen ill and has been replaced by Akio Ohtori. In truth, he was poisoned by his wife, Mrs. Ohtori, at Akio's request. Kanae Ohtori is his daughter. Very little else is known about him.
He makes a brief appearance at the very end of the manga, continuing to be the chairman of Ohtori as Akio seems to have been erased from history.