Girraween is a suburb of Sydney, in the state of New South Wales, Australia. Girraween is located 30 km west of the Sydney central business district, in the local government area of Cumberland Council and is part of the Greater Western Sydney region.

At the 2016 census, in Girraween. Less than half (37.9%) of people were born in Australia, with the top other countries of birth being India 26.9%, Sri Lanka 10.6%, Malta 2.5%, China 2.2% and Philippines 1.4%. In Girraween, 70.0% of people spoke a language other than English at home. The other most common languages spoken were Tamil 18.3%, Gujarati 9.4%, Hindi 6.4%, Telugu 4.4% and Maltese 2.5%. The top responses for religious affiliation were Hinduism 42.5%, Catholic 19.8% and No Religion 8.5%.

Girraween is serviced by the 705 bus route from Blacktown to Parramatta. There is no railway station although it is a short walk through Civic Park, to Pendle Hill Railway Station. Toongabbie Railway Station is also easily accessible by walk or car.