Family name Excalibur (Excalibur 
) , globally, is a rare surname. The cognomen Excalibur is characteristic of Indonesia, where it is a very rare surname, France, and Italy, where it is an extremely rare surname. Also, Excalibur is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Excalibur | France, China, Indonesia, United States, Belgium |