Mount Defiance may refer to:
;In Australia
;In the United States
See also
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Defiance Mountain
Defiance Mountain is a 2,669-meter-elevation (8,756-foot) summit in the northernmost Pacific Ranges of the Coast Mountains of British Columbia, Canada. It is located to the south of the Bella Coola River between the communities of Firvale and Hag ...
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Mount Defiant
Mount Defiant is an elevation glaciated summit located northwest of Valdez in the Chugach Mountains of the U.S. state of Alaska. This remote mountain is situated east-northeast of Columbia Peak, south of Mount Einstein, near the head of Co ...
{{Mountain index