Ormagöden (Brütal Legend) is a great and fearsome beast whose very being represented the four elements of the Brütal Realm - Metal, Noise, Blood and Fire - his death imbedding these four elements into the world, transforming it forever.
Salamander (Valkyrie Crusade) is the incarnation of fire.
Vesta (Valkyrie Crusade)
Volcanus (Valkyrie Crusade)
Hestia (Valkyrie Crusade)
Belisama (Valkyrie Crusade)
Balthus (Adventure Time) the Fire Elemental of the prehistoric era.
Flame Princess (Adventure Time) the current Fire Elemental.
Entei (Pokémon) represents the flames that burned Ecruteak City's Brass Tower.
Aka/Red (Isekai Shokudou) the dragon god of fire.
As Flame Lord, Elesis (Elsword) becomes the incarnation of fire
Fire dinosaurs/Various theropods (Dinosaur King)
AncientGreymon Legendary Warrior of Fire (Digimon Frontier)
Agunimon The Human Spirit of Fire (Digimon Frontier)
BurningGreymon The Beast Spirit of Fire (Digimon Frontier)
Aldamon, Agunimon and BurningGreymon Combined Form (Digimon Frontier)