Machar is a township in the Canadian province of Ontario.

Located in the Almaguin Highlands region of Parry Sound District, Machar surrounds but does not include the village of South River.

In the 2021 Census of Population conducted by Statistics Canada, Machar had a population of 969 living in 459 of its 875 total private dwellings, a change of 9.9% from its 2016 population of 882.

With a land area of 182.65 km2 (70.52 sq mi), it had a population density of 5.3/km2 (13.7/sq mi) in 2021.

[4] This township in Parry Sound District was named by Sir Oliver Mowat in 1875 for the Rev John Machar (1796-1863), a founder of the Presbyterian Church of Upper Canada in 1831 and of Queen's College (University) in 1841, where he served as principal, 1843-53.