Cognomen Yefa (业发 
, Yefa 
, Ефа 
) , in the world, is a rare family name. The surname Yefa is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Ukraine, where it is a very rare surname, and Morocco. Measured by absolute frequency, it most frequently occurs in China, the Democratic Republic of the Congo, and Indonesia. More frequently, Yefa is the forename as well as the last name.