Carolus Rex (disambiguation)

Carolus Rex frequently refers to King Charles XII of Sweden

Carolus Rex (King Charles) may also refer to:


 * King Charles (disambiguation), kings named Charles, who in Latin documents and on 17th-century English coins are referred to as "Carolus Rex"
 * Carolus Rex (bastion), a portion of the Gothenburg city wall
 * Carolus Rex (album), a 2012 album by Sabaton
 * Carolus Rex March, a Swedish military march composed by Wilhelm Harteveld