| Days Turn Blue to Gray | |
| Cover: | Days Turn Blue.jpg |
| Type: | single |
| Artist: | Machine Head |
| Album: | Through the Ashes of Empires |
| Released: | 2004 |
| Genre: | Groove metal |
| Length: | 5:29 (album version) 4:25 (single version) |
| Label: | Roadrunner |
| Prev Title: | Imperium |
| Prev Year: | 2003 |
| Next Title: | Aesthetics of Hate |
| Next Year: | 2007 |
"Days Turn Blue to Gray" is a song by American heavy metal band Machine Head from the album Through the Ashes of Empires. It was released as a single in 2004.
The single was only made available through mail order from the UK or at Machine Head gigs during their 2004 UK tour. "Seasons Wither" was previously not available outside of North America. "The Rage to Overcome" was played at the 10th anniversary show of Burn My Eyes in Philadelphia, Pennsylvania, for the first time in over five years.