Cognomen 马什 (Mash 
, Marsh , Marshe 
) , all around the world, is a widespread surname. The family name 马什 is habitual in Guernsey, where it is quite a common surname, Antigua and Barbuda, and Jersey (explore the name in all countries). In absolute terms, it is commonest in the United States, the United Kingdom, and Australia. Very seldom, 马什 is the forename as well as the last name.