Last name Quei (Cine 
, Quien 
, Quei 
) , throughout the world, is quite a common cognomen. The surname Quei is characteristic of Algeria, where it is quite a common surname, Latvia, where it is quite a rare surname, and Morocco. Measured by absolute frequency, it is commonest in Algeria, Morocco, and the United States. Much less frequently, Quei is the forename as well as the last name.