Otto Fred Hutter (29 February 1924 – 22 November 2020) was an Austrian-born British physiologist who was Regius Professor of Physiology at the University of Glasgow.

His father, Isaak, from Lviv (now in Ukraine), had joined the Austro-Hungarian army to fight in the First World War, after which he settled in Austria.

He left Vienna in December 1938[1] as part of the Kindertransport which allowed Jewish children to escape the German annexation of Austria (the Anschluss).

During a Rockefeller travelling scholarship in Baltimore, at the laboratory of Stephen Kuffler, he worked with another visitor, Wolfgang Trautwein.

Their recordings, made in tortoise heart, have become iconic medical and physiological textbook images of these phenomena.

He gave the 2018 lecture himself, entitled Exodus from Vienna, it told the story of what happened to his 37 classmates at the Chajes gymnasium.