Louis-Rodolphe Roy (7 February 1858 – 14 May 1925) was a Canadian lawyer, politician, and judge. Born Saint-Vallier, Canada East, in the son of Nazaire Roy and Marie Letellier, Roy was educated at the Séminaire de Québec and received a Bachelor of Laws degree from the Université Laval in 1883. He was called to the Quebec Bar in 1883 and practiced law in Quebec City. He was created a King's Counsel in 1903 and received an honorary doctorate from the Université Laval in 1908. He died in Quebec City in 1925 and was buried in the Notre-Dame-de-Belmont Cemetery in Sainte-Foy, Quebec.