The Explorer Seamount is a seamount located in the Pacific Ocean off the coast of British Columbia, Canada. It is on the Explorer Ridge, a tectonic spreading centre that separates the Pacific and Explorer plates and so the volcanism is rift-related. It is the namesake of the Explorer Ridge.

Explorer Seamount is named after the United States Coast and Geodetic Survey ship USC&GS Explorer (OSS 28), which operated from 1940 to 1943 in the northern Pacific Ocean and the Gulf of Alaska.

• Volcanism of Canada
• Volcanism of Western Canada
• List of volcanoes in Canada

• British Columbia Marine Topography