Louis Le Provost de Launay (8 June 1850 – 17 August 1912) was a French politician who was Deputy and then Senator for the department of Côtes-du-Nord (now called Côtes-d'Armor).

[2] His father was a prefect of the Second French Empire who was elected a representative in the National Assembly in 1874, deputy from 1877 to 1881, and senator from 1885 to 1886.

[3] Louis Le Provost de Launay studied law in Paris and obtained his license.

[4] In 1875 Le Provost de Launay was elected general councilor for Côtes-du-Nord representing the canton of La Roche-Derrien.

[8] On 4 October 1885 Le Provost de Launay ran on the conservative list in Côtes-du-Nord and was elected first out of nine.

[4] Le Provost de Launay was reelected on 22 September 1889, holding office until 14 October 1893, again sitting with the Conservative Union group.

[9] He and Jules Delahaye brought up the Panama scandals, and he made a speech in which he denounced the manipulations of the so-called 104 parliamentarians.

He was involved in questions related to army, opposed to excessively harsh treatment of soldiers but concerned that common criminals should be dismissed.

[9] Louis Le Provost de Launay died in office on 17 August 1912 in Aix-les-Bains, Savoie.