- "According to legend... the troubles caused by Majora's Mask were so great... the ancient ones, fearing such catastrophe, sealed the mask in shadow forever, preventing its misuse."
- — Happy Mask Salesman
The Ancient Ones are characters mentioned in The Legend of Zelda: Majora's Mask. According to the Happy Mask Salesman, they are an ancient tribe that used Majora’s Mask in their hexing rituals. The mask caused much trouble in their possession, however, so fearing a catastrophe, the Ancient Ones sealed it away in shadow, preventing its misuse. For reasons unknown the tribe vanished prior to the events of the game.
Due to similarities between Majora's Mask and the Fused Shadow created by Interlopers mentioned in The Legend of Zelda: Twilight Princess, it is possible that the Ancient Ones may have been Interlopers. Another possibility is that the Ancient Ones are the Interlopers' Terminan counterparts (as it is never stated as to whether Majora's Mask originated in Hyrule or Termina). This may explain why they choose to seal away Majora's Mask (instead of using its evil power for their own ends like the Interlopers did with the Fused Shadow), as they where not as evil as their Hyrulean counterparts (similar to the Terminan counterparts of Koume and Kotake).