Family name 西佛 (Silver 
, Seaver 
, Seyfert 
) , in all the world, is a common cognomen. The surname 西佛 is habitual in Namibia, where it is quite a common surname, Isle of Man, and Eswatini. In absolute terms, the name is most common in the United States, Nigeria, and the United Kingdom. Likewise, 西佛 is the forename as well as the last name.