Mount Saint John (also Te Kōpuke or Tītīkōpuke) is a volcanic scoria cone in Epsom, in the Auckland volcanic field of New Zealand. It has a peak 126 metres above sea level and a crater around 150 m wide. It was the site of a pā, and has retained Māori earthworks from that era such as kumara pits and terracing. The age of Mount St John is currently unknown but is older than 28,500 years old as the scoria cone is mantled in ash from Te Tatua-a-Riukiuta volcano.
Mount St John is now known to be the source of the long lava flow that ran west down an old stream valley and out into the Waitemata Harbour as Meola Reef. Maungawhau / Mount Eden later erupted through the lava flow.
Coordinates: 36°53′00″S 174°46′49″E / 36.883431°S 174.780196°E