Mullion is a civil parish and village on the Lizard Peninsula in south Cornwall, England, United Kingdom. The nearest town is Helston approximately 5 miles (8 km) to the north.

Mullion Cove, or Porth Mellin, is a small community on the West Coast of the Lizard Peninsula in Cornwall, England, and on the eastern side of Mount's Bay. The Cove forms part of the parish of Mullion, and is accessible by road from Mullion village, 1 mile (1.6 km) to the northeast, and also via the South West coast path. It lies within an Area of Outstanding Natural Beauty.