| El enigma de Gaspar Hauser |
Spain |
| Every Man for Himself and God Against All |
(undefined) |
| Kaspar Hauser |
Hungary |
| Kaspar Hauser - Jeder für sich und Gott gegen alle |
West Germany |
| Kaspar Hauserin tapaus |
Finland |
| Kasper Hauser - var och en för sig och Gud mot alla |
Sweden |
| Kazdý pro sebe a Buh proti vsem |
Czechoslovakia (Czech title) |
| L'enigma di Kaspar Hauser |
Italy |
| L'enigme de Kaspar Hauser |
France |
| O Enigma de Kaspar Hauser |
Brazil |
| O kathenas gia ton eafto tou kai o Theos enantion olon |
Greece (reissue title) |
| Tajna Kaspara Hausera |
Croatia |
| The Enigma of Kaspar Hauser |
International (English title) |
| The Mystery of Kaspar Hauser |
International (dubbed version) (English title) |
| To ainigma tou Kaspar Hauser |
Greece |
