The Great Deku Tree is the fatherly guardian of the forest in The Wind Waker. He safeguards not only the dense land around him, but the small population of beings that live in his shadow.
Deku Link is one of the forms Link assumes in Majora's Mask.
The Deku Royal Family is a group from Majora's Mask. It consists of Dekus that are the members of the traditional monarchy that rule Woodfall, the southernmost region of Termina.