Oatley is an electoral district of the Legislative Assembly in the Australian state of New South Wales in Sydney's St George district.

It is currently held by Mark Coure of the Liberal Party.

On its current boundaries, Oatley takes in the suburbs of Connells Point, Hurstville Grove, Kyle Bay, Lugarno, Mortdale, Oatley, Peakhurst, Peakhurst Heights and parts of Beverly Hills, Blakehurst, Hurstville, Narwee, Penshurst, Riverwood and South Hurstville.

[1] Oatley was first created in 1927, with the breakup of the multi-member St George.

It was recreated for the 2007 election largely replacing the abolished district of Georges River.