Mask (disambiguation)
A mask is a covering worn on the face, or an object depicting a face.

Mask may also refer to:

Technology

Computing 
 Mask (computing), in computer science, a bit pattern used to extract information from another bit pattern
 Affinity mask, a bit mask indicating what processor a thread or process should be run on
 Image mask, applied to digital images to "cut-out" the background or other unwanted features
 umask, the default permission setting for new files on UNIX systems

Other technologies 
 Photomask, used to create the circuit layers in IC fabrication
 Front-end mask, an automobile accessory
 Respirator, an air filter worn as a mask over nose and mouth
 Shadow mask, a technology used to manufacture cathode ray tube televisions that produce color images
 Spectral mask, a mathematically defined set of lines applied to the levels of radio transmissions in telecommunications

Arts and media

Film and television 
 Mask (1985 film), a film directed by Peter Bogdanovich
 Mask, the (1994 film), a film starring Jim Carrey
 M.A.S.K., a media franchise comprising toys, animated series, and other media
 M.A.S.K. (TV series), an animated television series
 Mask (2015 TV series), a South Korean television series
 Mask (2018 film), a Bengali film directed by Rajiv Biswas
 Mask (2019 film), a Malayalam film directed by Sunif Hanif
 Masks (1929 film), a German film directed by Rudolf Meinert
 Masks (1987 film), a French film directed by Claude Chabrol
 Masked (film), a 1920 Western starring Hoot Gibson
 "Masks" (Star Trek: The Next Generation), a 1994 seventh season episode of the TV series Star Trek: The Next Generation

Other fiction
 Mask (Forgotten Realms), a deity in the Dungeons & Dragons Forgotten Realms campaign setting
 Masks (Angel comic), a comic based on the Angel television series
 Mask (DC Comics), a fictional DC Comics character
 Masks, an eight issue mini series by Dynamite Entertainment
 Mask De Mascline, a fictional character from Bleach

Music 
 Mask (Aco album), 2006
 Mask (Bauhaus album), 1981
 Mask (Fanatic Crisis album), 1996
 Mask (Roger Glover album), 1984
 Mask (Vangelis album), 1985
 "Mask" (song), a 2021 song by Dream
 "Mask", a song by James from the album Living in Extraordinary Times
 "Masks", a song by Prodigal from the album Electric Eye
 Mask, a 1980s rock band whose vocalist was José Fors

Other arts
 Masking (art), materials used to protect portions of a work from unintended change, such as masking tape, frisket, and stencils
 Masking (illustration), a drawing technique that originated in Japan

Other uses 
 "Mask", nickname of Charles Lewis Jr. (1963–2009), co-founder of clothing line TapouT
 MASK, an MI5 operation (1934–1937) that decrypted Communist International radio communications
 Mask, Mazandaran, a village in Mazandaran Province, Iran
 Mask, South Khorasan, a village in South Khorasan Province, Iran

See also
 
 
 Face mask (disambiguation)
 Masked ball (disambiguation)
 The Mask (disambiguation)
 Masking (disambiguation)
 Masque