| Complètement fou | |
| Type: | studio |
| Artist: | Yelle |
| Cover: | Yelle-completement-fou.jpg |
| Recorded: | 2013–14 |
| Length: | 41:58 |
| Language: | French |
| Chronology: | Yelle |
| Prev Title: | Safari Disco Club |
| Prev Year: | 2011 |
| Next Title: | Complètement fou (Remix) |
| Next Year: | 2015 |
Complètement fou ("Completely crazy" in French) is the third studio album by French electropop group Yelle. It was released on 29 September 2014 in France, and worldwide on 2 October 2014.