Last name יאא (Yaa 
, יאא) , in all the world, is a common surname. The family name יאא is characteristic of Sub-Saharan Africa, particularly Ghana, where it is quite a common surname, Mauritius, where it is quite a rare surname, and Kenya. Measured by absolute frequency, it is commonest in Ghana, India, and Kenya. Likewise, יאא is the forename as well as the last name.