Nanauatzin

In Aztec mythology, the god Nanauatl (or Nanauatzin, the suffix tzin implies respect or familiarity), the most humble of the gods, sacrificed himself in fire so that it would continue to shine on Earth as the sun, thus becoming the sun god. Nanahuatl means "full of sores". In the Codex Borgia , Nanahuatl is represented as a man emerging from a fire, originally this was interpreted as an illustration of cannibalism.
See more at Wikipedia.org...

[Aztec] The Aztec god who sacrificed himself in a fire so that the sun should continue to shine over the world.