Cognomen 默夫 (Murph 
, 默夫 ) , in all the world, is quite a rare last name. The cognomen 默夫 is characteristic of Ireland, where it is quite a rare surname, the United States, where it is a rare surname, and New Zealand. Not in comparison with a country's population, this name is the most popular in the United States, Ireland, and the United Kingdom. Very seldom, 默夫 is the forename as well as the last name.