Gandof (ガンドフ, Gandofu?) is a non-player character in Final Fantasy X. He is a summoner and one of the five summoners who defeated Sin using the Final Aeon in times past the story in Final Fantasy X. Statues of High Summoner Gandof, as he was later known, can be seen in the temples of Yevon.
Before becoming a High Summoner, Gandof helped the people of Spira by sealing up the Qactuar roaming about the Thunder Plains in stone. He believed that defeating Sin was not the only thing summoners could do to help Spira. During his final battle with Sin, Gandof left his mark with the formation of a huge rift in Calm Lands known as "the Scar".