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In all the world, ولش (Welch , Walsh , Welsh ) is quite a rare unisex first name. The first name ولش is characteristic of the Democratic Republic of the Congo, where it is a rare epicene name, Ireland, and Afghanistan, where it is a rare male name. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, the United States, and China. Much more prevalently, ولش is the last name as well as the forename.
ولش is also a name for the fictitious and mythical characters: Welsh Herald/Tempter , the operatic character in the opera The Martyrdom of St Magnus by Peter Maxwell Davies.