| NECESSARY | |
| Cover: | ELT_Necessary.jpg |
| Type: | single |
| Artist: | Every Little Thing |
| Album: | Every Best Single +3 |
| Released: | September 30, 1998 |
| Genre: | J-pop |
| Length: | 03:47 (Necessary only) |
| Label: | avex trax |
| Prev Title: | Forever Yours |
| Prev Year: | 1998 |
| Next Title: | Over and Over |
| Next Year: | 1999 |
"Necessary" is a song by the Japanese J-pop group Every Little Thing, released as their tenth single on September 30, 1998.