Paul-Étienne Grandbois (c. 1846 – September 18, 1907) was a physician and political figure in Quebec.
He represented Témiscouata in the House of Commons of Canada from 1878 to 1896 as a Conservative member.
He was born in Ste-Philomène, Châteauguay County, Canada East and was educated at the Collège Saint-Sulpice, the Petit Séminaire de St. Therèse de Blainville and the Université Laval.
Granbois ran unsuccessfully for reelection to the House of Commons in 1896, 1900 and 1904.
This article about a Quebec Member of Parliament from the Conservative Party of Canada (1867–1942) is a stub.