In France New Year is called La Saint-Sylvestre and is usually celebrated with a feast called Le Reveillon de Saint Sylvestre. And you can wish New Year in French is simply Bonne Annee which literally means Good Year. Most of the people of France Wish their family and friends by saying Bonne Annee. All the cultures were celebrate Happy New Year with their own style or language.
New Year or Saint Sylvestre celebration in france with feats trends to include special or famous dishes of france like champagne or Foie Gras and they were invite their friends for the dinner, at midnight everyone kisses each other and offers their Best Wishes for the Sain Sylvestre (Happy New Year).
Intersting part is kissing under the mistletoe is a New Year’s custom in France, rather than a Christmas custom as in other countries mainly in USA. Kissing may be on the lips or on the cheeks it depend on the relationship between the two people. So if you want to Wish their friends who live in France or who known the french language then say “Saint-Sylvestre”
Happy new year in french Bonne année et bonne santé !