Second Harbour Crossing (disambiguation)

Second Harbour Crossing may refer to:


 * Second Harbour Crossing, Auckland, the proposed second transport link over the Waitemata Harbour in Auckland, New Zealand.
 * Upper Harbour Bridge, an existing twin motorway bridge over the Waitemata Harbour in Auckland, New Zealand.
 * The Twin Sails Bridge, a proposed double-leaved bascule bridge in Poole, Dorset, England.
 * The Sydney Harbour Tunnel, an existing twin-tube road tunnel crossing of Sydney Harbour in New South Wales, Australia.
 * A proposed extension of the Westconnex motorway over the Sydney Harbour in New South Wales, Australia.
 * Sydney Metro City & Southwest, a metro rail line under construction beneath Sydney Harbour in New South Wales, Australia.
 * Eastern Harbour Crossing, an existing twin-tube road tunnel crossing of Victoria Harbour in Hong Kong.