Louis-Napoléon LaRochelle (November 14, 1834 – October 27, 1890) was a manufacturer, railway contractor and political figure in Quebec.

He was born in Saint-Anselme, Lower Canada, the son of Siméon Gautron, dit Larochelle and Sophie Pomerleau.

He served on the board of directors for the Levis and Kennebec Railway with Joseph-Godric Blanchet, Hector-Louis Langevin and Christian Pozer; he was later involved in a bitter and public dispute with Charles Armstrong Scott about who was to blame for the railway's financial failure.

[1] He was defeated by Hector-Louis Langevin when he first ran for election to the Quebec assembly in 1867 but was successful in 1871.

Larochelle was elected again in 1886 but resigned his seat in 1888 to sit for Lauzon division in the Legislative Council of Quebec.