Non-diplomatic Ambassadorships
In a less formal sense, the word is used for high-profile non-diplomatic representative of various entities (rarely states), mainly cultural and charitable organizations, often as willing figureheads to attract media attention, e.g. film and pop stars make appeals to the public at large for UNESCO activities (see UNESCO Goodwill Ambassadors), sometimes during press-swarmed visits in the field.
In French speaking regions such as France, Wallonia or Quebec, the title of ambassadeur person is used.
Read more about this topic: Ambassador