Tutsingle Mountain is a mountain on the Stikine Plateau in northern British Columbia, Canada, located east of Nuthinaw Mountain and northwest of Dease Lake on the northeast side of the Tachilta Lakes.

It is a product of subglacial volcanism during the Pleistocene period when this area was covered by thick glacial ice, forming a subglacial volcano that never broke through the overlying glacial ice known as a subglacial mound.

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