| Blacken My Thumb | |
| Type: | single |
| Artist: | The Datsuns |
| Label: | Hellsquad Records |
| Prev Title: | Mother Fucker from Hell |
| Prev Year: | 2003 |
| Next Title: | Girl's Best Friend |
| Next Year: | 2004 |
"Blacken My Thumb" is a single by New Zealand rock band The Datsuns in 2004. It charted in the UK, peaking at number 48.