Baulkham Hills was an electoral district of the Legislative Assembly in the Australian state of New South Wales.

Its last member was David Elliott of the Liberal Party.

[1] Baulkham Hills was a 41 km² electorate in Sydney's north-west, taking in the suburbs of Baulkham Hills, Bella Vista and parts of Carlingford, Castle Hill, Kellyville, North Rocks and West Pennant Hills.

As with its predecessor, it covers a series of wealthy and largely conservative suburbs.

As a result of a redistribution in 2021, Baulkham Hills was abolished at the 2023 election; its territory split between Castle Hill, Epping and Kellyville.