United Nations goodwill ambassadors are all those goodwill ambassadors which are officially designated by one of the specialized agencies or departments of the United Nations. Each United Nations department and ambassador or advocate is officially designated a postnominal honorific title (UN Department Code) + (Goodwill Ambassador) or (Advocate). This category technically is for the United Nations goodwill embassies made up of individual ambassadors, it is not a category for individual ambassadors unless it is unknown so much about their affiliation with the United Nations to categorize them with their appropriate department or specialized agency goodwill ambassador corps.

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