A consul is a diplomat appointed to live in a foreign country, to protect both her country's interests and citizens living abroad. If you're an American living in Poland, take your troubles to the American consul.
In ancient Rome, there were two consuls elected every year to be in charge of the whole city. Like many words, this one developed new meanings and spellings. One of those is council, like your city council, who make up part of city government. The other is consul in the modern sense: the person from one country who is appointed to represent his country to a foreign government.