Walla is a sound effect imitating the murmur of a crowd in the background.

Walla may also refer to:

Walla! Communications, Israeli internet company August Walla (born 1936), Austrian art brut artist Chris Walla (born 1975), American musician Walla Brook, three streams on Dartmoor, England

See also Walla Walla (disambiguation) Wallah, a suffix in Indic languages Wala (disambiguation) Valla (disambiguation)