Dennington is a town in the Western District of Victoria, Australia. The town is located in the City of Warrnambool local government area, 270 km south-west of the state capital, Melbourne and 5 km north-west of the regional centre of Warrnambool. At the 2016 census, Dennington had a population of 1,907. The town was home to a large bulk milk powder plant operated by New Zealand dairy co-operative, Fonterra. When opened by Nestlé in 1911, it was the world's largest condensed milk plant. The plant was closed in 2019 and is now owned by Provico. The town lies on the Merri River.