Mr. Clio is a non-playable character in Final Fantasy V, located in the Unknown Cave. To reach the cave, a Submarine is needed, submerging it south of Karnak. When spoken to, he will tell the player various statistics such as the number of treasures found and number of enemies slain.
Mr. Clio reappears as a player icon in Dissidia 012.
In Greek mythology, Clio is the muse of history and may have provided the inspiration for the name of this character.