Ernst Otto Hölder (2 April 1901 in Leipzig – 30 June 1990 in Mainz) was a German mathematician who made contributions to partial differential equations and continuum mechanics.

Afterwards, he worked as an assistant at the University of Leipzig and passed the First State Examination in 1926.

In 1929 he earned his habilitation, also at the University of Leipzig, with a topic on celestial mechanics.

From 1929 to 1939, he worked as a privatdozent at the University of Leipzig, and from 1939 to 1945, he was a scientific member at the German Aeronautical Research Institute in Braunschweig.

[2] After World War II, Hölder held various academic positions at the University of Leipzig, including as an extraordinary professor, head of the Mathematical Institute, and dean of the Philosophical Faculty II.