Collis may refer to:
People Collis (surname) Collis (given name)
Other uses Collis (planetary geology), a term used in planetary geology for a small hill or knob Collis, Minnesota, an unincorporated community, United States Collis, former name of Kerman, California, United States Collis, a genus of Asian funnel weavers Collis, a genus of trilobites
See also Collis Mill, Great Thurlow, Suffolk, England, a Grade II* listed smock mill