Detective Comics #27
| Series | Detective Comics |
| Number | Vol. 1 #27 |
| Publisher | Detective Comics, Inc. |
| Date | 1939-05 |
| Type | Comic Book |
| Artist | Bob Kane |
| Writer | Bob Kane |
| Genre | Superhero |
| Published in | 480 Lexington Avenue, New York, N. Y. |
| Pages | 64 |
| Characters | Bat-Man |
| Notes | Legendary first appearance of the Bat-Man |