>
Cognomen Dav (Dav , 廣 , 戴夫 ) , across the world, is quite a common family name. The cognomen Dav is characteristic of Mauritius, where it is quite a rare surname, Oman, and Qatar. Measured by absolute frequency, this name is the most popular in India, China, and Bangladesh. Likewise, Dav is the forename as well as the last name.