Ostend is a settlement on Waiheke Island, in New Zealand's Hauraki Gulf within the Auckland Region.

Ostend is connected to Surfdale by a causeway which crosses the western arm of Putiki Bay.

The area is used by boatsmen who moor their boats on the beach, as it is easy to access from the mainland marina at Half Moon Bay.

In late 1915, a competition was held to decide the name of the new settlement, which was won by Miss Boylan, a resident of Auckland, who suggested the name Ostend,[3] referencing the Belgian city of the same name, which had been a part of the theatre of World War I.

The results were 86.8% European (Pākehā); 12.6% Māori; 4.8% Pasifika; 5.0% Asian; 5.6% Middle Eastern, Latin American and African New Zealanders (MELAA); and 1.8% other, which includes people giving their ethnicity as "New Zealander".

[6] Of those at least 15 years old, 477 (28.1%) people had a bachelor's or higher degree, 771 (45.5%) had a post-high school certificate or diploma, and 441 (26.0%) people exclusively held high school qualifications.