Cyclos

Cyclos is a character from The Legend of Zelda: The Wind Waker. He is one of the Gods of the Wind, along with his brother Zephos. His name comes from the wind term cyclone. Cyclos and his brother are depicted as giant frogs. Cyclos resides in large cyclones on the sea. Link must shoot him with his bow and arrows in order to get a song for the Wind Waker, the Ballad of Gales, which allows him to summon cyclones that can carry him to other locations.

Theories
It is likely that Cyclos is somehow connected to Chief Cylos from the The Legend of Zelda: Phantom Hourglass. This is likely because they are both similar named overgrown frogs who have wind-related powers. Also, Phantom Hourglass and The Wind Waker take place in the same timeline, which furthers this theory.