Albrecht Julius Theodor Bethe (25 April 1872 in Stettin – 19 October 1954 in Frankfurt am Main) was a German physiologist and was the father of physicist, Hans Bethe (1906–2005).
He studied at the universities of Freiburg, Munich (under Richard Hertwig), Berlin and Strasbourg (under Friedrich Goltz and Ernst Julius Richard Ewald); receiving his PhD in 1895, at Munich.
From 1896 to 1911, he worked at the Institute of Physiology in Strasbourg, where in 1898, he obtained his doctorate in medicine.
In 1937, he was relieved of his professorial duties at Frankfurt (his wife was deemed to be half-Jewish by the Nazis), only to have them reinstated following the end of wartime hostilities in Europe.
[1] The young physician Rose Hölscher made a silhouette of him, published in the 1921 booklet Frankfurter Charakterköpfe with portraits of prominent Frankfurt physicians.