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Globally, Duggan (Duggan , دوغان , ダガン) is a rare gender-neutral first name. The forename Duggan is characteristic of Syria, where it is a rare male name, Nigeria, where it is a very rare epicene name, and the United States, where it is a very rare predominantly boy's, but very infrequently feminine name. In absolute terms, it is commonest in Syria, India, and Nigeria. Much more frequently, Duggan is the last name as well as the forename.