The Deku King is the rash, overreactive, and overprotective monarch of the Southern Swamp in Termina in The Legend of Zelda: Majora's Mask for the Nintendo 64. When his daughter - the Deku Princess - went missing, the Deku King captured a monkey who had associated with his daughter and imprisons and tortures him. After Link rescues the Deku Princess from Woodfall Temple, the King realizes his mistake and releases the prisoner monkey. In the manga, instead of accusing the monkey, he rounded up random creatures such as Wolfos and Snappers, blaming them for the missing princess.
He has a giant crown of Deku Leaves and a large, dried-up Deku Nut for a scepter.