Cheltenham is a suburb in the Northern Sydney region of Sydney, in the state of New South Wales, Australia. Cheltenham is 18 kilometres north-west of the Sydney central business district in the local government area of Hornsby Shire.

M2 Hills Motorway is a 19.3-kilometre (12.0 mi) tolled urban motorway in Sydney, New South Wales that is part of the Sydney Orbital Network and the National Highway west of Pennant Hills Road. Owned by toll road operator Transurban, it forms majority of Sydney's M2 route, with the Lane Cove Tunnel constituting the rest of the M2 route.