Russia
The subregion of Southern Europe extends the farthest in Western Europe, more specifically, the country of Greece.
Somalia is the farthest country east.
The country that extends farthest north is Norway, and the country that extends farthest east is Russia. Russia holds the title for being the country with the largest east-west extent.
Yemen is the farthest-south country in the Middle East.
About 20 degrees east latitude to 40 degrees east latitude.
Russia lies farthest to the east
Brazil is the South American country that extends the farthest east. Its easternmost point is Ponta do Seixas in the state of ParaΓba.
Norway.
Helsinki, Finland.
The nation that is furthest west on the continent of Europe is Portugal. However, Iceland is further west but is an island. It has been traditionally part of Europe.
Denmark is the farthest east North American nation via Greenland. However, just including points on the continent, then Canada is farthest east.
Russia lies farthest to the east