Muwatalli I was a king of the Hittites.
Muwatalli killed his predecessor Huzziya II.
He was the Chief of the Royal Bodyguard (a position known as the Gal mesedi) of Huzziya, but later he killed him.
Muwatalli's Chief of the Royal Bodyguard was called Muwa.
Muwattalli himself was killed in a palace by Himuili, the Chief of the Palace Servants, and Kantuzili, the Overseer of the Gold Chariot Fighters.