Gottfried Reinhold Treviranus (20 March 1891, in Schieder, Germany – 7 June 1971, in Florence, Italy) was a German politician from the Conservative People's Party and a Reichsminister in both of Chancellor Heinrich Brüning's cabinets.

As a representative of the moderate wing of the DNVP, he rejected the extreme right led by Alfred Hugenberg who became party president in 1928.

In December 1929, he had participated in preliminary discussions with Brüning, Kurt von Schleicher, Defence Minister Wilhelm Groener and President Hindenburg's head of office Otto Meissner, at the home of his national conservative party friend Friedrich Wilhelm Freiherr von Willisen.

[3] Treviranus' first position in the new government was as Minister for the Occupied Territories, i.e. those parts of the Rhineland under French and Belgian occupation.

After the occupation forces were withdrawn following the Young Plan in June 1930 he became Minister without Portfolio and he liaised with industry for Hindenburg and Brüning.

Before the General Election of 1930, Treviranus, in co-operation with politically influential military leaders, tried to re-organise the party system.

[5][6][7][8] As Reich Commissioner for Eastern Germany, he was not successful in saving the country from bankruptcy [clarification needed] and after this failure he resigned in August 1931.

On behalf of Brüning, he advised the major Ruhr industrialists Paul Reusch and Fritz Springorum not to collaborate with the National Socialists and German nationalists.

He met many well-known politicians including Churchill and Anthony Eden, at whose behest, he was asked about the character of Hitler and the Nazi movement.

After 1945, Treviranus advised the United States government on the allocation of loans to German companies as part of the Marshall Plan.

In the 1960s, he worked as a defense lobbyist in the West German capital Bonn, where during this time he appeared in the investigative report on the HS-30 scandal.