Ahuriri Harbour also known as Ahuriri Lagoon or locally just Ahuriri, was a former estuary and tidal lagoon located on the Eastern Coastline of New Zealand's North Island, just north of present-day Napier. It stretched several kilometers from north to south, and covered roughly 4000ha², or 40 km². Ahuriri was the final stop for the Tutaekuri and Waiohinganga Rivers, which made the lagoon and surrounding lands a sacred place to the native Māori. The European settlers also realised the importance of the area, particularly economic wise and Napier was soon settled.