Leigh is a small coastal community in the north of the Auckland Region of New Zealand. It lies on the west side of Omaha Cove, a small inlet within Omaha Bay to the south of Cape Rodney. It is 13 km from Matakana, 21 km from Warkworth and approximately 92 km north of Auckland City. It is most noted for being the nearest town to Cape Rodney-Okakari Point Marine Reserve surrounding Goat Island. The reserve, the first of its type in New Zealand, is also the location for the University of Auckland's Marine Laboratory.
The population was 390 in the 2006 Census, a decrease of 33 from 2001.