| Native Name: | instead.--> |
| Term Start: | 5 September 1947 |
| Term End: | 2 May 1948 |
| Predecessor: | Paul Marik |
| Successor: | Andrew Sik |
| Birth Date: | 29 February 1872 |
| Death Place: | New York City, United States |
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. Edward Prince of Wales (later King Edward VII of the United Kingdom) was his godfather. 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.[3] He was the Hungarian ambassador to the U.S. from 5 September 1947 to 2 May 1948.