List of Famous people born on September 23rd

Eberhard W. Kornfeld is a Swiss auctioneer, gallerist, author, art dealer and collector in Bern.

Robert J. Kuntz is a game designer and author of role-playing game publications. He is best known for his contributions to various Dungeons & Dragons-related materials.

Mansur Mustafaevich Isaev is a Russian judoka. In 2012, he won the gold medal at the 2012 Summer Olympics in the -73 kg class against the Japanese judoka Riki Nakaya. This was Russia's second gold medal at the Games, after judoka Arsen Galstyan's victory two days earlier in Men's 60 kg.

Renato Curcio is the former leader of the Italian far-left organization, the Red Brigades.

Jorge Mateo Cuesta Porte-Petit was a Mexican chemist, writer and editor.

Hugo von Seeliger, also known as Hugo Hans Ritter von Seeliger, was a German astronomer, often considered the most important astronomer of his day.

Thomas Campbell Clark was an American lawyer who served as the 59th United States Attorney General from 1945 to 1949 and as an Associate Justice of the United States Supreme Court from 1949 to 1967.