Mahler (disambiguation)

Gustav Mahler (1860–1911) was a Romantic composer.

Mahler may also refer to:
 * Mahler (surname), a surname (including a list of people with the surname)
 * Mahler (film), a 1974 film about Gustav Mahler
 * Mahler (horse), a racehorse
 * Mahler (crater), a crater on Mercury
 * Mount Mahler, a mountain in Colorado