Constans (disambiguation)

Constans may refer to:


 * Constans (c. 320–350), Roman Emperor
 * Constans II (630–668), Emperor of the Byzantine Empire
 * Constans II (son of Constantine III) (died 411), co-emperor of the Western Roman Empire
 * Constans Lundquist (1891–1950), Swedish diplomat
 * Constans (consul 414), Magister militum per Thracias and consul in 414.
 * The Constant Factor, aka Constans, a 1980 Polish film
 * The CONSTANS transcription factor, part of a florigen-producing pathway in flowering plants

People with the surname

 * Jean Antoine Ernest Constans (1833–1913), French politician and colonial administrator