| 恋、花火 | |
| Cover: | Koi, Hanabi.jpg |
| Caption: | CD+DVD Cover |
| Type: | single |
| Artist: | 奥村初音 |
| Album: | ありがとう |
| B-Side: | やさしさのカタチ |
| Released: | September 5, 2007 |
| Recorded: | 2007 |
| Genre: | Pop, J-pop, pop rock |
| Chronology: | 奥村初音 |
| Next Title: | 砂 |
| Next Year: | 2008 |
is Hatsune Okumura's debut single. It was released on September 5, 2007, by Avex Trax.
The CD+DVD edition includes the Koi, Hanabi short film starring AAA's Takahiro Nishijima, Mitsuki Tanimura and Kenichi Endō.