consul

n. official chosen by a government to represent its interests in a foreign country

Consul (abbrev. cos.; Latin plural consules) was the highest elected office of the Roman Republic and an appointive office under the Empire. The title was also used in other city states, and revived in modern states, notably Republican France before the Napoleonic counter-revolution. The relating adjective is consular, from the Latin consularis (which has been used, substantiated, as a title in its own right).
See more at Wikipedia.org...

Noun
1. a diplomat appointed by a government to protect its commercial interests and help its citizens in a foreign country
(hypernym) diplomat, diplomatist

n. consul

n. consul, official chosen by a government to represent its interests in a foreign country