The Yann, or Yanna were a people from the planet Yannora known to the United Federation of Planets by 2341. Cadet Sinna was a female Yanna. They are known for being bald with a blue bit going from their necks to their ears. They are often a clannish race, preferring groups of people who are codependent on one another. As of 2341, Data did not know much about Yannish emotions. (TNG novel: Mystery of the Missing Crew, TNG novel: Secret of the Lizard People)