There are many languages among The Ocean of a Thousand Islands and beyond, but some of the most important or notable are:
- Metropolitan or Millèdé, the language of The Great City and the surrounding islands
- Lonouian, the language of the The Rain Islands
- Búlish, the language of the westlanderbarbarian Invaders from The West
- Ploohan, the language spoken among the corsairs and sorcerers from The Distant East
- Znèthindian, the language spoken among the savage people and beastmen of The Far North
- Ancient, the lost language of civilizations past, The Eldritch, Angles of Law and Demons of Chaos