Len Wood (born February 4, 1942 in Mitchell , Ontario) is a politician in Ontario, Canada. He was a member of the Legislative Assembly of Ontario from 1990 to 1999, sitting for the New Democratic Party of Ontario.

Wood completed a four-year millright course after graduating from high school, and worked as a millright mechanic before entering politics. He was actively involved in the labour movement and the Roman Catholic church.

His first attempts at public office were unsuccessful. He contested Cochrane North (located in the province's northeastern corner) in the 1987 provincial election, but lost to Liberal incumbent René Fontaine by almost 4,000 votes. In the federal election of 1988, he contested Cochrane—Superior for the federal NDP and lost to Liberal Réginald Bélair by 1,201 votes.

The NDP unexpectedly won the provincial election of 1990, and Wood was elected in Cochrane North over Liberal Donald Grenier by 143 votes. He was not a prominent figure in the legislature, and served as a backbench supporter of Bob Rae's government for five years.

Voting trends in the 1995 provincial election were strongly against the NDP in most parts of Ontario, and the party fell from government to third-party status. In Cochrane North, however, Wood countered the provincial trend and dramatically increased his majority: he defeated Liberal candidate Gilles Gagnon by almost 2,000 votes. In opposition, he served as Critic for the Minister of Northern Development and Mines.

Redistribution eliminated Cochrane North in the 1999 provincial election, and Wood was forced to seek re-election in the newly-formed riding of Timiskaming—Cochrane . He finished third, behind fellow incumbent David Ramsay of the Liberal Party and Rick Brassard of the Progressive Conservatives.

He ran again for the federal NDP in the 2000 election, but lost to Bélair again by 6,950 votes.