| 砂 | |
| Type: | single |
| Artist: | 奥村初音 |
| Album: | ありがとう |
| B-Side: | 君を想うと・・・ |
| Released: | February 13, 2008 |
| Recorded: | 2008 |
| Genre: | Pop, J-pop, pop rock |
| Chronology: | 奥村初音 |
| Prev Title: | 恋、花火 |
| Prev Year: | 2007 |
| Next Title: | ホントはね |
| Next Year: | 2008 |
is Hatsune Okumura's second single. It was released on February 13, 2008 by Avex Trax.
The release of came almost six months since her last single and did not receive a tie-in.