Mullum may refer to:
Mullum-Mullum Creek, creek in the outer eastern suburbs of Melbourne, Victoria, Australia Mullum Mullum Creek Linear Park, east of Melbourne, Australia in the suburbs of Doncaster East and Donvale Mullum Mullum Creek Trail, shared use path for cyclists and pedestrians in the outer eastern suburbs in Melbourne, Victoria, Australia
See also Mullum Malarum, a 1978 Indian Tamil-language film by J. Mahendran