Mabon may refer to:
- Mabon (Wicca), the Autumnal equinox in some versions of the Wheel of the Year
- Mabyn or Mabon, an early Cornish saint
- Mabon ap Modron, a figure in Welsh Arthurian legend
People with the name
- Willie Mabon (1925-1985), American singer & songwriter
- Dickson Mabon (1925-2008), Scottish politician
- William Abraham (trade unionist) or Mabon Abraham (1842-1922), Welsh politician