| 3/8 | |
| Type: | greatest |
| Artist: | Kay Tse |
| Cover: | Kay Tse - 3-8.jpg |
| Released: | 14 December 2007 |
| Genre: | Cantopop/Rock/Jazz |
| Label: | Cinepoly |
| Prev Title: | The First Day |
| Prev Year: | 2006 |
| Next Title: | Binary |
| Next Year: | 2008 |
3/8 is the fourth studio album by Hong Kong singer Kay Tse, released on 14 December 2007. It contains three new songs and 15 of her greatest hits.