Look up Mahler in Wiktionary, the free dictionary.
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