Hum

Hum may refer to:

Hum (sound), a sound produced with closed lips, or by machinery, insects, or other periodic motion
The Hum, a phenomenon involving a persistent and invasive low-frequency noise of unknown origin which occurs in some geographic locations.
Hum (band), a U.S. space-rock band
Hum, Croatia, known as the smallest town in the world
Hum (film), a 1991 Bollywood film starring Amitabh Bachchan
Mains hum, an electric or electromagnetic phenomenon that causes a low frequency (50 or 60 Hz) audible signal
Hum Mountain, a mountain in Serbia
Land of Hum, an English translation of the Zahumlje region of modern Herzegovina
Hum, a possible transliteration of the sixth syllable in Buddhist "Six syllable mantra" Om mani padme hum
Hum., an abbreviation for Humanities
HUM, Harakat ul-Mujahidin, an Islamic militant group based in Pakistan