Yannick is a first name that originated in Brittany, France, where the combination of its two Breton language parts, Yann and -ick, results in the meaning of Little John or Petit Jean in French.
It is used as a first name mostly for men and is in use, notably, in French-speaking countries like France, (a part of) Belgium, Switzerland (Romandy), Canada (Quebec), and former French African colonies.