Last name ウェルチ (Welch 
, ウェルチ 
) , in all the world, is a widespread family name. The surname ウェルチ is habitual in Barbados, where it is a common surname, Guernsey, where it is quite a common surname, and Belize (explore the name in all countries). In absolute terms, it is commonest in the United States, the United Kingdom, and Canada. Much less frequently, ウェルチ is the forename as well as the last name.