| Under Age's Song | |
| Cover: | Under_age's_song.jpg |
| Type: | single |
| Artist: | Dragon Ash |
| Album: | Buzz Songs |
| Released: | July 23, 1998 |
| Genre: | Alternative rock, pop rock, rap rock |
| Length: | 15:41 |
| Label: | Victor Entertainment |
| Prev Title: | Hi wa Mata Noborikuri Kaesu |
| Prev Year: | 1998 |
| Next Title: | Free Your Mind #33 |
| Next Year: | 1998 |
"Under Age's Song" is the second maxi single by Japanese group Dragon Ash, released in 1998.