Cognomen Échec (Xec 
, Échec) , all around the world, is quite a rare last name. The surname Échec is habitual in Guatemala, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Oman, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Guatemala, India, and Mexico. Much less frequently, Échec is the forename as well as the last name.