How do you address charge d'affairs?

A chargé d'affaires is typically addressed as "Monsieur" or "Madame" followed by their last name in formal correspondence. In conversation, it is appropriate to use their title, such as "Monsieur le Chargé d'Affaires" or "Madame la Chargée d'Affaires." If you are unsure of their preferred title, simply addressing them as "Ambassador" is also acceptable. Always maintain a respectful tone, as they represent their country.