| Birthday EP | |
| Type: | EP |
| Artist: | The Crüxshadows |
| Cover: | Birthday (The Crüxshadows EP).jpg |
| Released: | September 4, 2007 |
| Recorded: | 2007 |
| Genre: | Synthpop |
| Label: | Dancing Ferret Discs |
| Prev Title: | DreamCypher |
| Prev Year: | 2007 |
| Next Title: | Immortal |
| Next Year: | 2008 |
Birthday is a 2007 EP released by The Crüxshadows. It is the second single release from the 2007 album DreamCypher. A fan favorite, the band's wish was granted when it outsold their previous single/EP, Sophia. To the band's delight, Birthday hit #1 on the Hot Dance Singles Sales chart and #2 on the Hot 100 Singles Sales chart on September 13, 2007, while Sophia hit again at #3 and #23, respectively.