Rusztem Vámbéry (29 February 1872 in Budapest[1] – 24 October 1948 in New York[2]) was a judge, politician and criminologist of international standing.

He was the son of the famed orientalist Ármin Vámbéry.

He studied law in Halle and Budapest.

In Hungary, he had opposed the policy of Béla Kun's Soviet Republic and Miklós Horthy's Regency.

He lived in the U.S. from 1938, teaching at the New School for Social Research in New York.