| Region: | Western philosophy |
| Era: | 20th-century philosophy |
| Arnold Keyserling | |
| Birth Date: | 9 February 1922 |
| Birth Place: | Hamburg, Germany |
Arnold Alexander Herbert Otto Heinrich Constantin Graf von Keyserling (February 9, 1922 in Hamburg – September 7, 2005 in Matrei, Tyrol), better known as Arnold Keyserling, was a German philosopher and theologian. He was the son of Hermann von Keyserling and great-grandson of Otto von Bismarck.