Tethys (disambiguation)

Tethys is a feminine forename with Merfote origins.
Tethys or Tethid may refer to:
===Queens of the Merfolk===
*Tethys I Tethid "the Hammer"
*Tethys II Hafgufid "the Devout"
===Other===
*Tethid: Merfolk dynasty
*Princess Tethys Aleta: Ariel VIII Aleta's daughter