Louder

Louder refers to an increase in loudness.

Louder may also refer to:

Persons

 * Alexis Louder, American actress
 * Alison Louder, Canadian actress
 * Earle Louder, musician specialising in playing euphonium, professor of music
 * Jeff Louder (born 1977), American road racing cyclist

Music

 * Louder (Lea Michele album)
 * "Louder" (Lea Michele song), single from Lea Michele album above
 * Louder (R5 album)
 * Louder Tour, 2014 concert tour by R5 to promote their album above
 * Louder!, an album by Sofía Reyes
 * "Louder" (Charice song)
 * "Louder" (DJ Fresh song)
 * "Louder" (DJ MuscleBoy song)
 * "Louder" (Neon Jungle song)
 * "Louder" (Parade song)
 * "Louder", a song by All That Remains from the album Madness, 2017
 * Louder, or Louder Sound, is the parent brand of Metal Hammer, Prog and Classic Rock magazines since 2017