The Northern Connector (proposed route M20) is a 15 kilometre long proposed expressway in Adelaide, South Australia. It will travel from the North-South Motorway (National Highway M2) at Wingfield to the Max Fatchen Expressway (M20) (previously known as the Northern Expressway) as part of an ongoing plan to develop a continuous freeway grade road between Old Noarlunga and Nuriootpa known as the North–South Corridor.