Bullengarook /bəˈlʌŋɡərʊk/ is a locality in Victoria, Australia. The locality is centred on Bacchus Marsh Road, 14 kilometres (9 mi) west of Gisborne and 19 km north of Bacchus Marsh. Bullengarook is in the Shire of Macedon Ranges local government area. At the 2011 Census, Bullengarook and the surrounding area had a population of 603. Mount Bullengarook, the Lerderderg State Park and the headwaters of Coimadai Creek are found to the south of the township.