Jean-Baptiste Louis Bourgeois (March 19, 1856 – August 20, 1930) was a Canadian architect, active in Canada and the United States.

His wife's medical bills caused him to go into debt, and thus he moved to Montreal to work as an apprentice sculptor to Napoléon Bourassa.

[5] Louis Bourgeois may be best known as the architect of the Baháʼí House of Worship in Wilmette, suburban Cook County, Illinois.

To give ʻAbdu'l-Baha an idea of the design direction he would take, he sent a plan that he had previously submitted for the eight-sided Peace Palace and Library in The Hague.

During the 1920s he spent much time making an architectural model and constructing the complex structure, and financing his efforts to do so, through periods of illness.