Balliang is a locality in Victoria, Australia. It is divided between the Shire of Moorabool and City of Greater Geelong local government areas. It lies north of Geelong and 54 kilometres (34 mi) from the state capital, Melbourne. At the 2021 census, Balliang had a population of 254.

As of the 2016 Australian census, 290 people resided in Balliang. The median age of persons in Balliang was 42 years. There were more females than males, with 52.7% of the population female and 47.3% male. The average household size was 2.9 people per household.