There is no way to answer this because there is no place where "East" stops. It's just a direction compared to where you are at the moment, so there's no place actually called "East." If you keep going in an easterly direction, you'll end up back where you started because the world is round.
cuba
barbados
mount. wanalanahuie island
The Canadian city that is farthest east is Winnipeg. Winnipeg is the capital of Manitoba. It has the most days of winter sunshine of any Canadian city.
Somalia is the farthest country east.
Russia lies farthest to the east
Maine is the farthest east state.
Lake Ontario is farthest East out of the Great Lakes.
Yemen is the farthest-south country in the Middle East.
MaineMaine.
The farthest north country is Denmark (via Greenland). The farthest east country is Kiribati.
Augusta, Maine is farthest east.