Huan is a planet in the Alpha or Beta Quadrants, and homeworld of the Huanni species. It became a member world of the United Federation of Planets in the late 23rd century. (TOS novel: The Last Roundup)

Huan's representative to the Federation Council in 2380 was Corices, who also sat as one of the "back eight" on the Federation Security Council. (ST novel: Articles of the Federation)

Articles of the Federation refers to the planet as Huanni rather than Huan.