| Kokuhaku | |
| Cover: | Idoling_-_Kokuhaku.jpg |
| Type: | single |
| Artist: | Idoling |
| Released: | 16 July 2008 |
| Genre: | J-pop |
| Label: | Pony Canyon |
| Prev Title: | Snow celebration/Moteki no Uta |
is the third single by Japanese idol group Idoling. It was released both as a normal edition and limited edition CD + DVD, containing special content and rare footage of the group. Track 3 is only available on the normal edition release. Kokuhaku was used as the theme song of the Microsoft Windows Vista "Vista School" campaign. Its highest charted Oricon position was #9. As of early 2009, it is the highest-selling single by Idoling.