Hilliard is a township in the Canadian province of Ontario, located within the Timiskaming District. Its main community is Hilliardton, located along Secondary Highway 569. The smaller communities of Couttsville and Whitewood Grove are also located within the township.

The township was named in honour of Daniel Hilliard, member of the Legislative Assembly of Ontario from 1886 to 1888.

Hilliard, Ontario
Historical populations

Year	Pop.	±%
1991	248	—
1996	253	+2.0%
2001	241	−4.7%
2006	222	−7.9%
2011	204	−8.1%
2016	223	+9.3%

In the 2021 Census of Population conducted by Statistics Canada, Hilliard had a population of 215 living in 87 of its 93 total private dwellings, a change of 3.9% from its 2016 population of 207. With a land area of 91.27 km (35.24 sq mi), it had a population density of 2.4/km (6.1/sq mi) in 2021.

Mother tongue:

• English as first language: 75%
• French as first language: 24%
• English and French as first language: 1%
• Other as first language: 0%

• List of townships in Ontario
• List of francophone communities in Ontario