Cocobygo is a non-playable character from Final Fantasy XIV. He is the second of the six brothers—Cocobuki, Cocobani, Cocobezi, Cocoboha, and Cocobusi. With the exception of the youngest, all the brothers share the position serving as Guildmaster of the Thaumaturges' Guild in Arrzaneth Ossuary.
The day after the Battle of Carteneau, Cocobygo and his brothers formed a posse with Sultana Nanamo Ul Namo to restore order to Ul'dah in the immediate aftermath. After the previous guildmaster, Mumuepo, was arrested on charges of embezzlement, the thaumaturge brothers became joint Guildmaster of the Thaumaturges' Guild.
Once the Warrior of Light joined the Thaumaturges' Guild, Cocobygo taught him with lessons taken from "The Threat of Intimacy", the first chapter from Zozomaya's lauded guide Thaumaturgy: The Yawning Abyss. The passage recited by Cocobygo warned that a thaumaturge would do well to keep her enemies at a distance.
After discovering that the Mageslayer was actually Cocobusi possessed, Cocobuki studied the Book of Mormo in hopes of finding a method of reversing this. After locating Mormo, Cocobuki offered to have his aetheric energy drained so that the voidsent could assume a physical form and leave Cocobusi's body. Once this was done, the Warrior of Light and the other brothers defeated the succubus.
As with his fellow brothers, Cocobygo wears a red-and-black Woolen Cowl with Darklight armor and has red tattoos on his face.
Of the four younger guildmasters, Cocobygo is noticeably more timid, especially in matters regarding the raw destruction of thaumaturgy. He and his brothers care deeply for Cocobusi.