Joseph George Didier "Cannonball" Pitre (September 1, 1883 – July 29, 1934) was a Canadian professional ice hockey player.

One of the first players to join the Montreal Canadiens, Pitre and his teammates' French-Canadian heritage led to the team being nicknamed The Flying Frenchmen.

Before that Pitre and Laviolette had played together on the Montreal Le National team in the Federal Amateur Hockey League.

Despite Pitre and Laviolette playing three years for the Michigan Soo in the IPHL, the club failed to bring home a championship, finishing 3rd, 2nd and 4th in the league standing between 1905–1907.

The next season, in 1907–08, after the IPHL had folded, Pitre left as a free agent and played with the Montreal Shamrocks in the Eastern Canada Amateur Hockey Association (ECAHA), where he was again joined by Jack Laviolette.

[1] After the Stanley Cup challenge with Edmonton Pitre jumped the contract and went back to eastern Canada where he played with the Renfrew Creamery Kings in the FAHL for the remainder of the 1908–09 season.

Pitre joined the Montreal Canadiens in 1910 in the newly founded National Hockey Association (NHA), the club's first season of existence, where he teamed up with Jack Laviolette and Edouard "Newsy" Lalonde.

He also helped lead the Canadiens to their first-ever Stanley Cup, defeating Portland Rosebuds of the PCHA over five games.

[4] Didier Pitre's combination of speed, size and a hard shot made him one of the preeminent offensive players of his era.

I had been playing with the Canadiens and my continual fire on "Riley" Hern, the Montreal Wanderers goalkeeper, got on his nerves so much that the boys got to calling my shots "bullets."

Although not considered one of the roughest players of his era, Pitre still had a bulky frame and could still handle himself physically if he had to, which in some seasons resulted in a fairly high amount of penalty minutes.

Marie, Michigan, would also play in the NHL, with the Chicago Black Hawks and New York Rangers, and would be inducted into the United States Hockey Hall of Fame.