| Defection | |
| Type: | single |
| Artist: | Minori Chihara |
| Released: | February 9, 2011 (Japan) |
| Genre: | Techno, J=rock |
| Length: | 14:19 |
| Label: | Lantis |
| Prev Title: | Ittōsei |
| Prev Year: | 2010 |
| Next Title: | Key for Life |
| Next Year: | 2011 |
"Defection" is the 11th CD single by Minori Chihara.[1] It was released simultaneously with her 12th single, "Key for Life." The single ranked 9th on the Oricon charts in the week it debuted.