| Yuruginaimono Hitotsu | |
| Cover: | B'z_YH.jpg |
| Type: | single |
| Artist: | B'z |
| Album: | Monster |
| Released: | April 12, 2006 |
| Genre: | Hard rock, pop rock, j-pop |
| Length: | 7:50 |
| Label: | Vermillion Records |
| Producer: | Tak Matsumoto |
| Prev Title: | 'Shoudou' |
| Prev Year: | 2006 |
| Next Title: | 'Splash!' |
| Next Year: | 2006 |
"Yuruginaimono Hitotsu" is the forty-first single by B'z, released on April 12, 2006. This song is one of B'z many number-one singles in Oricon charts. The B-side "Pierrot" was also featured on the album Monster and it has been covered by Aya Kamiki. The song is used as the ending theme in Detective Conans tenth feature film .