List of Famous people who died in 1991

John Regis Toomey was an American film and television actor.

Demetrios I also Dimitrios I or Demetrius I, born Demetrios Papadopoulos was the Ecumenical Patriarch of Constantinople from July 16, 1973, to October 2, 1991. He was the 269th successor to St. Andrew, and was the spiritual leader of more than 5 million Eastern Orthodox Christians. Before his election as patriarch he served as the metropolitan bishop of Imvros. He was born and died in Istanbul, Turkey.

Isabelle Delorme was a Canadian composer, pianist, and music educator. As a composer, her works are lyrical in nature and follow more traditional ideas of harmony as opposed to the avant-garde music that was in vogue in her day. She was an active recitalist but is best remembered for her impact as a teacher of music theory.

Georg Alexander Kornelius Erich von Rauch (1904–1991) was a Baltic German historian specializing in Russia and the Baltic states.