| Déjà vu | |
| Type: | single |
| Artist: | Blue System |
| Album: | Déjà vu |
| Released: | 1991 |
| Label: | Hansa |
| Producer: | Dieter Bohlen |
| Prev Title: | Testamente d'Amelia |
| Prev Year: | 1991 |
| Next Title: | It's All Over |
| Next Year: | 1991 |
"Déjà vu" is a song by Blue System. It is the first track on their 1991 sixth studio album, Déjà vu, and was released as its lead single.
The single debuted at number 75 in Germany for the week of September 23, 1991, rising to number 14 two weeks later and then peaking at number 12 for two weeks.
The song is written and produced by Dieter Bohlen.