Copperhead may refer to:

Snakes

* ''Agkistrodon contortrix'', or copperhead, a venomous pit viper species found in parts of North America * ''Austrelaps'', or Australian copperhead, a genus of venomous elapids found in southern Australia and Tasmania * ''Radiated ratsnake, Coelognathus radiata'', or the copperhead rat snake, a non-venomous species found in southern Asia * ''Deinagkistrodon, Deinagkistrodon acutus'', or the Chinese copperhead, a venomous pit viper species found in Southeast Asia

Politics

* Copperhead (politics), Northern Peace Democrats who opposed the American Civil War

Art, entertainment, and media

Comics

* Copperhead (Image Comics), ''Copperhead'' (Image Comics) an ongoing space western from Image Comics

Fictional entities

* Copperhead (DC Comics), DC Comics supervillain and member of the Secret Society of Super-Villains * Copperhead (G.I. Joe), villain in the G.I. Joe universe, member of Cobra * Copperhead (Marvel Comics), several characters * "Copperhead", codename of Vernita Green in the movie ''Kill Bill'' * The Copperhead, the masked hero of the 1940 Republic serial ''Mysterious Doctor Satan'', played by Robert Wilcox (actor), Robert Wilcox

Films

* Copperhead (2008 film), ''Copperhead'' (2008 film), a 2008 horror film * Copperhead (2013 film), ''Copperhead'' (2013 film), a 2013 American Civil War film * ''The Copperhead'', a 1920 silent film historical drama

Literature

* ''Copperhead'', the second volume in the U.S. Civil War series The Starbuck Chronicles by Bernard Cornwell

Music

* Copperhead (band), a San Francisco area band of the early 1970s featuring John Cipollina

Software

* CopperheadOS, a security-focused mobile operating system based on the Android mobile platform

Other uses

* Copperhead (climbing), a small metal nut used in rock climbing * Dodge Copperhead, a more affordable, less-powerful model of the Dodge Viper, not produced * M712 Copperhead, a U.S. guided artillery shell * Copperhead, a gaming mouse by Razer USA * Operation Copperhead, WWII deception operation * Southwest Florida Copperheads, a rugby league team in the United States