Philippe Grenier (French pronunciation: [filip ɡʁənje]; 14 August 1865 – 25 March 1944) was a French politician who served as a member of the Chamber of Deputies for Doubs from 1896 to 1898.

A doctor by occupation in his home town of Pontarlier, he became a municipal councillor by campaigning on public health issues and public assistance.

He was later elected to the French Parliament with 51% of the vote in the second round in 1896; in the Chamber of Deputies he was registered as a member of the Radical Left.

Philippe Grenier's visit to French Parliament in 1897, dressed in traditional Algerian clothing, was an important news story in several French-language magazines of early 1897, including the Belgian magazine Le Globe Illustré, where Victor T'Sas, A.K.A.

Vias, drew a picture story about Grenier's visit.