Dummy
Dummy may refer to:

Dolls
Mannequin, a model of the human body
Dummy (ventriloquism)
Crash test dummy

People
Dummy (nickname), any of several people with the nickname
Dummy, the Witch of Sible Hedingham (c. 1788–1863), one of the last people to be accused of being a witch in England

Arts and entertainment
Characters
Dummy (Marvel Comics), from the comic book X-Men
Dummy (DC Comics)

Films
Dummy (1979 film), a TV movie starring LeVar Burton and Paul Sorvino
Dummy (2002 film), a comedy/drama
Dummy, a 2009 coming-of-age drama starring Emma Catherwood
Dummy, a short film by Kira Muratova
The Dummy (1917 film), an American silent drama
The Dummy (1929 film), an American comedy

Music
Dummy (album), 1994, by Portishead
"Dummy!", a song by Toby Fox from the soundtrack of the 2015 video game Undertale
"Dummy", a song by American rock band, Portugal. The Man

Television
"Dummy" (Pushing Daisies episode)
"The Dummy", an episode of The Twilight Zone
Dummy (TV series), a 2020 web comedy

Other
Dummy, in contract bridge, the partner of the player who wins the auction, or that player's hand

Linguistics
Dummy auxiliary, such as do in some English sentences
Dummy pronoun, such as it in the sentence it is good to relax

Military
Dummy round,  a round of ammunition that is completely inert
Military dummy, fake military equipment used for deception

Sport
Dummy (football), an association football (soccer), rugby league and rugby union ruse
Dummy pass, in rugby league football

Other uses
Dummy Lake (disambiguation), any of several places
Dummy sheet, a blank sheet folded as a pre-print newspaper test
Dummy, in computing means a placeholder
Dummy variable, in programming is a variable that doesn't contain any useful data, but it does reserve space that a real variable will use later
Dummy variable, another term for bound variable in mathematics
Dummy variable (statistics), another term for binary variable in statistics
Pacifier, called a dummy in some countries
Steam dummy, a steam engine made to resemble a railroad passenger coach

See also
All pages with titles containing Dummy
Dum (disambiguation)
Dumb (disambiguation)
For Dummies, an instructional/reference book series