The story
As one of the first nations, Germany founded a NOC in 1895, purposefully named "Komitee für die Beteiligung Deutschlands an den Olympischen Spielen zu Athen" ("Committee for the participation of Germany at the Olympic Games in Athens"). It was recognized by the IOC, and Germany took part in 1896 for the first time. The name of the temporary NOC changed to reflect the next two host towns, before it became permanent after 1904.
The 1916 Summer Olympics had been awarded to Berlin, but were canceled because of the duration of World War I, with Germany and other Central Powers getting excluded from the "Olympic family" which was dominated by the Entente Powers. Thus, in 1917, the "Deutscher Reichsausschuss für Olympische Spiele" (DRA, DRAfOS "German Imperial Commission for Olympic Games") was renamed Deutscher Reichsausschuss für Leibesübungen (DRL, "German Imperial Commission for Physical Exercise") to reflect and protest the non-Olympic situation.
In lieu of the Olympic Games of 1920, for which Germany and its allies were not invited, "Deutsche Kampfspiele" ("German Sports Contests") were organized, both for Summer and Winter, with the 1922 Winter edition predating the first Olympic Winter Games by two years. Hardly surprising, Berlin, having been prepared for 1916, was the site for the first Summer event:
1922
Garmisch und Partenkirchen (Oberbayern)
18 – ?? June 1922 Berlin
1926
Triberg und Titisee (Schwarzwald)
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4 – 11 July 1926 Köln
1930
Krummhübel (Riesengebirge)
26 – 29 June 1930 Breslau
Unlike others, Germany was still not invited for 1924. In 1925, the DRL split up, to remain focused on sports in Germany, while the NOC section became the Deutscher Olympischer Ausschuss (DOA, "German Olympic Commission") in order to focus on international relations and the promotion of the return of Germany to Olympics. This succeeded for 1928, with Germany taking part in both games.
The organisations remained separate, even though Nazi Germany took influence from 1933 onwards. In 1931, the IOC had decided to give both 1936 Olympic Games to Germany.
After the war, Germany was occupied and partitioned. In 1946, the DOA was dissolved. Soon, in June 1947 Adolf Friedrich zu Mecklenburg founded a new provisional Deutscher Olympischer Ausschuss, which was not recognized by the IOC as it did not represent any recognized state yet. On 23 May 1949, the Federal Republic of Germany was established on the territory of the Western-occupied zones. On 24 September 1949, the Nationales Olympisches Komitee für Deutschland ("National Olympic Committee for Germany") was founded in Bonn as a successor to the DOA.
In October 1949, under Soviet occupation, the German Democratic Republic was founded, which on 22 April 1951 founded a separate Nationales Olympisches Komitee für Ostdeutschland ("National Olympic Committee for East Germany"), renamed in 1965 to "Nationales Olympisches Komitee der Deutsche Demokratische Republik" ("National Olympic Committee of the German Democratic Republic"). Only in 1968 was it recognized by the IOC as a fully independent member.
As a third German state, under French occupation, was the Saar Protectorate (1947–1956), which also founded sporting organisations in order to take part in international competition, like football and the Olympics. The Nationales Olympisches Komitee des Saarlandes ("National Olympic Committee of the Saarland") was founded in 1950 and recognized by the IOC.
After criticism due to lack of success in 2004, the Deutscher Sportbund ("German") (DSB) and the Nationales Olympisches Komitee für Deutschland (NOK) decided to merge in 2005.
From Wikipedia’s article on German Olympic Sports Confederation, shared under CC BY-SA 4.0.5