Austria–Germany border

The border between the modern states of Austria and Germany (Grenze zwischen Deutschland und Österreich) has a length of 815.9 km, or 815.0 km respectively. It is the longest international border of Austria and the second longest border of Germany with another country (its longest is the border with the Czech Republic, with a length of 818.8 km).

Course
Within itts western part, the border runs roughly from east to west, but from a point south of Salzburg to its eastern end, located at the tripoint of Germany, Austria and the Czech Republic, it runs in a mainly northeastward direction. The western end is located at the border tripoint of Germany, Austria and Switzerland within the Obersee part of Lake Constance (Bodensee), although the exact course of the international borders within Lake Constance have never been defined. The border is 815 km long, but a straight line between the endpoints is 345 km long.

Jungholz and Kleinwalsertal are two Austrian pene-exclaves; they can only be reached by road through German territory.

Besides Lake Constance, the border does not pass through any significant lake, but it follows the Danube, Inn and Salzach rivers along the eastern part and the Leiblach in its western part. Otherwise, the border follows the western part of the Northern Limestone Alps (Allgäu Alps, Ammergau Alps, Wetterstein, Karwendel, Bavarian Prealps, Kaiser Mountains, Chiemgau Alps, Berchtesgaden Alps), although a few valleys cross the border, too (e.g., the Inn Valley near Kufstein).

The Austrian states of Vorarlberg, Tyrol, Salzburg, and Upper Austria run along the international border, as does the German state of Bavaria.

Tripoints
The eastern tripoint between the countries of Germany, Austria and the Czech Republic is located at 48.77167°N, 13.83944°W, near the villages of Schwarzenberg am Böhmerwald and Bayerischer Plöckenstein. The western tripoint is located between Germany, Austria and Switzerland, at approximately 47.55°N, 9.56667°W, in the eastern part of Upper Lake Constance.

Lakes

 * Eibelesee
 * Lake Constance (also borders with Switzerland)
 * Rannasee
 * Taubensee
 * Wöhrsee

Rivers and creeks

 * Aschauer
 * Augustinergraben
 * Bächteletobel
 * Baumgartenbach
 * Bayrachbach
 * Berchtesgadener Ache
 * Berndlgraben
 * Bolgenach
 * Breitach
 * Bächgraben
 * Bärnbach
 * Bürgerbach
 * Danube (Donau)
 * Dandlbach
 * Doserbach
 * Dürrach
 * Eibelebach
 * Eibkendlbach
 * Enzenbach
 * Eyenbach
 * Fermersbach
 * Finsterbach
 * Fischbach (Linder)
 * Fischbach (Weiße Traun)
 * Fugenbach
 * Gatterlbach
 * Großache
 * Hagenbach
 * Hirschbichlklausgraben
 * Holderbach
 * Hörnlebach
 * Hühnersbach
 * Inn
 * Isar
 * Kälbergernbach
 * Kesselbach
 * Kieferbach
 * Kleiner Bach
 * Kräutergrabenbach
 * Köhlerbach
 * Laublisbach
 * Lappbach
 * Lech
 * Lecknerbach
 * Leiblach
 * Leutasch
 * Lenzengraben
 * Littenbach
 * Lofer
 * Loisach
 * Markgraben
 * Maxenbach
 * Mosertalbach
 * Mühlbach
 * Naidernach
 * Neualmbach
 * Neuhäuslgraben
 * Pittenbach
 * Polusbach
 * Reichenauer Graben
 * Reichenbach
 * Rickenbach
 * Riedbach
 * Rißbach
 * Roggentalbach
 * Rohrmoosbach
 * Rothach
 * Roßkarbach
 * Saalach
 * Salzach with several bridges, e.g. Oberndorf-Laufen
 * Sandbach
 * Schaffitzerbach
 * Schanztobel
 * Scheidbach
 * Schellenbach
 * Schlafblassenbach
 * Schlawitzabach
 * Schwarzenbach
 * Schönbach
 * Seebach
 * Steinbach
 * Stöcklbach
 * Tiefengraben
 * Totermannbach
 * Unkenbach
 * Valepp
 * Vils
 * Walchen
 * Weißach
 * Weißbach
 * Wertach
 * Zimmerholsbach
 * Äuelebach

International bridges

 * Alte Innbrücke, Schärding - Neuhaus
 * Kräutelstein
 * Saalachbrücke Salzburg-Freilassing

International mountain ranges

 * Alps
 * Alpine foothills

International mountains

 * Ammer Saddle
 * Dürrnberg
 * Fellhorn
 * Kranzhorn
 * Untersberg
 * Zugspitze

Settlements near the border

 * Freilassing 🇩🇪 / Salzburg 🇦🇹
 * Großgmain (Salzburg (state)) 🇦🇹
 * Kufstein 🇦🇹 / Oberaudorf 🇩🇪
 * Oberau (Berchtesgaden) 🇩🇪
 * Waidring (Kitzbühel District) 🇦🇹
 * Walserberg 🇦🇹

Road

 * Inn Valley Autobahn
 * Schrofen Pass
 * Steinpass
 * Ursprung Pass

Rail

 * Ausserfern Railway
 * Mittenwald Railway
 * Rosenheim–Kufstein railway (RJ,, , , )
 * Rosenheim–Salzburg railway (EN, RJ,, , )
 * Vorarlberg Railway (EC/ECE,, , )
 * Wels–Passau railway (ICE, )

History
The border was confirmed in a treaty between the countries in 1972, after having been defined by a number of agreements between the Austrian Empire and the Kingdom of Bavaria in the 19th century. In 1938 the countries merged through the Anschluss. This was reverted in 1955 by the Austrian State Treaty, which re-established Austria as a sovereign state. The Schengen Area removed border controls at the border in 1997. Temporary border controls were reinstalled in 2015 in response to the European migrant crisis. These temporary border controls were scheduled to be removed on 12 May 2020, although they are liable to be extended in six-month periods.