Hippolyte Montplaisir (March 7, 1839 – June 20, 1927) was a Canadian politician.

[1] He became Senator for Shawinegan, and Member of Parliament.

He was born on March 7, 1839, in Cap-de-la-Madeleine, Lower Canada[1] and was the son of Paschal Montplaisir and Victoire Crevier.

In 1891, he was appointed to the Senate on the advice of John Alexander Macdonald representing the Senatorial Division of Shawinegan, Quebec.

He served as an MP and senator for 53 years until his death in 1927.