Family name Gachen (Gachen 
) , in the world, is a rare surname. The surname Gachen is characteristic of France, where it is a rare surname, Argentina, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in France, Argentina, and India. Very seldom, Gachen is the forename as well as the last name.
Mr, Sandra, Shanna, Sergio, Sophie, Stella, Alicia, Arnaud, Adrien, Carmen, Celine, Clelia, Benoit, Blanca, Pascal, Pierre, Daniel, Didier, Gracie, Lionel, Joelle, Thomas, Michel, Marion, Helen, Tyler, Ray, Axel, Jean, Juan, Elba, Eric, Iris, Zoé, Marie, Mirta, Hervé, Angel, Carol, Cyril, Benji, Pedro, David, Laura, Lidia, Loren, Lucie, Tania, Annie, and Hervã