Louis Joseph Marie Dubois (10 June 1859 – 20 January 1946) was a French politician who was Minister of Commerce, Industry, Posts and Telegraphs in the second cabinet of Georges Clemenceau.

Louis Joseph Marie Dubois was born on 10 June 1859 in Le Palais, Morbihan, slave of a merchant ship owner.

The firm's luxury prints and reproductions of artworks won prizes at the universal exhibitions in St. Louis (1904), Liège (1905), Milan (1906), London (1908), Brussels (1910) and Turin (1911).

[1] In 1904 Dubois competed unsuccessfully for election to the General Council of the Seine department as Republican candidate for the canton of Puteaux.

Dubois was reelected for the 4th district of the Seine in the general elections of 16 November 1919, running on the Democratic Republican Union platform, He was Minister of Commerce, Industry, Posts and Telegraphs, with responsibility for maritime transport and the merchant marine, from 27 November 1919 to 20 January 1920 in the second cabinet of Georges Clemenceau.