Joseph Paul Marion (December 8, 1927 – January 15, 2023)^[1] was politician from Manitoba, Canada. He was briefly a Liberal Party member of the Legislative Assembly of Manitoba during the 1970s, for the riding of St. Boniface.^[2]

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Marion was born in St. Boniface, Manitoba, and was educated at the Angus School of Commerce and Ryerson Polytechnical Institute. He was a successful businessman before entering political life, and served as a company president.

He served as a school trustee from 1967 to 1970, and was a councilor and acting mayor of Winnipeg in 1972–1973. Marion was a founder of Club d'Hommes d'Affaires Franco-Manitobain.

In the 1973 provincial election, he was elected over Liberal-turned-New Democratic Party incumbent Laurent Desjardins by a single vote. His election was overturned, however, and he lost to Desjardins by 618 votes in a by-election held in late 1974.^[3] He did not seek a return to the legislature after this time.^[2]