Louis-Ernest Lafont (26 July 1879 in Lyon – 7 May 1946 in Paris) was a French socialist politician. Lafont represented Loire in the French National Assembly between 1914 and 1928, and then Hautes-Alpes between 1928 and 1936. He served as Minister of Public Health 1935-1936. Politically, he was a disciple of Hubert Lagardelle. A lawyer by profession from a bourgeois background, Lafont was a graduate of the Ecole des sciences politiques and a lawyer at the Paris Court of Appeals. He obtained a doctorate in Law. He served as the legal attorney of the General Confederation of Labour (CGT).