Constant
# Constant

Constant or The Constant may refer to:

## Mathematics

* Constant (mathematics), a non-varying value
* Mathematical constant, a special number that arises naturally in mathematics, such as π or e

## Other concepts

* Control variable or scientific constant, in experimentation the unchanging or constant variable
* Physical constant, a physical quantity generally believed to be universal and unchanging
* Constant (computer programming), a value that, unlike a variable, cannot be reassociated with a different value
* Logical constant, a symbol in symbolic logic that has the same meaning in all models, such as the symbol "=" for "equals"

## People

* Constant (given name)
* Constant (surname)
* John, Elector of Saxony (1468–1532), known as John the Constant
* Constant Nieuwenhuys (1920-2005), better known as Constant

## Places

* Constant, Barbados, a populated place

## Arts and entertainment

* "The Constant", a 2008 episode of the television show Lost
* The Constant (Story of the Year album)
* The Constant (I Blame Coco album)
* Constants (band), an American rock band
