Germany is in Western and Central Europe, with Denmark bordering to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France and Luxembourg to the southwest, and Belgium and the Netherlands to the northwest. It lies mostly between latitudes 47° and 55° N (the tip of Sylt is just north of 55°), and longitudes 5° and 16° E. The territory covers 357,021 km² (137,847 sq mi), consisting of 349,223 km² (134,836 sq mi) of land and 7,798 km² (3,011 sq mi) of water. It is the seventh largest country by area in Europe and the 62nd largest in the world.

Elevation ranges from the mountains of the Alps (highest point: the Zugspitze at 2,962 metres or 9,718 feet) in the south to the shores of the North Sea (Nordsee) in the northwest and the Baltic Sea (Ostsee) in the northeast. The forested uplands of central Germany and the lowlands of northern Germany (lowest point: Wilstermarsch at 3.54 metres or 11.6 feet below sea level) are traversed by such major rivers as the Rhine, Danube and Elbe. Glaciers are found in the Alpine region, but are experiencing deglaciation. Significant natural resources are iron ore, coal, potash, timber, lignite, uranium, copper, natural gas, salt, nickel, arable land and water.

The English word Germany derives from the Latin Germania, which came into use after Julius Caesar adopted it for the peoples east of the Rhine. The German term Deutschland (originally diutisciu land, "the German lands") is derived from deutsch, descended from Old High German diutisc "popular" (i.e. belonging to the diot or diota "people"), originally used to distinguish the language of the common people from Latin and its Romance descendants. This in turn descends from Proto-Germanic Þiudiskaz "popular" (see also the Latinised form Theodiscus), derived from Þeudo, descended from Proto-Indo-European tewtéh - "people".