Upper Harbour Bridge, Road bridge in Auckland, New Zealand.

The Upper Harbour Bridge, also called the Greenhithe Bridge, is a motorway bridge in west Auckland, New Zealand. It is technically two bridges spanning the Upper Waitematā Harbour and connecting Hobsonville in West Auckland with Greenhithe on the North Shore. The original 1975 bridge is a 457 m, 7-span cantilever structure; the 2005–2006 duplicate is 524 m long, 16.5 m wide and has 10 spans.

The first bridge structure was completed in 1975 to handle growing traffic between the communities. A second parallel bridge was built between 2005 and 2006 to increase capacity.

The bridge is known locally as the Greenhithe Bridge, and its opening on 6 December 2007 completed the Upper Harbour Motorway link. The project, including the causeway widening, received a Silver Award from the Association of Consulting Engineers New Zealand. The new span carries a cycleway and walkway on its north side.

Pedestrian and cycle paths run along the northern side, offering direct access for non-vehicle users. The crossings are clearly marked and visibility across the bridge is generally good.

In 1986 the structure gained attention when A.J. Hackett conducted initial tests for commercial bungee jumping from it. This marked a turning point in the history of extreme sports and adventure tourism.