A mask was an object worn over the face and used for entertainment, cultural, or religious reasons. Masks could also be worn to hide the true identity of a person.
The shopkeeper Garos had a variety of masks in his curio shop on the Akaali homeworld including one of the mythical ruler Draylan. (ENT: "Civilization")
The Malurians disguised themselves while on a covert mining operation on the Akaali homeworld. They wore thin masks covering their true identity. During a fight with one of the Malurians, Jonathan Archer damaged this mask and unconvered the true form. (ENT: "Civilization")
A fictional scenario designed to test Cadet Thira Sidhu included Captain Christopher Pike wearing an automatically detaching mask, supposedly so the crew would not see that he had mutinied. (ST: "Ask Not")
Commander Benjamin Sisko owned a 2,000-year-old Yoruba mask. (DS9: "The Search, Part I", "Favor the Bold")
In an alternate timeline, Jake Sisko kept this mask at his house in New Orleans. (DS9: "The Visitor")
The extinct mythologic D'Arsay figures Masaka and Korgano were represented by Data and Jean-Luc Picard with different symbologic masks. Data created his mask using clay. (TNG: "Masks")
A Tal Shiar myth claimed that the organization was merely a mask worn by a far older cabal called the Zhat Vash. (PIC: "Maps and Legends")
