New Windsor (Māori: Niu Winiha), founded in 1865, is a suburb of Auckland, New Zealand.

It is located 10 kilometres (6.2 mi) from the Auckland city centre, between Mount Albert, Blockhouse Bay, Mt Roskill and Avondale.

In 1984, the name New Windsor, previously only used as a colloquial name, was officially adopted as the name of the suburb.

The results were 26.9% European (Pākehā); 8.1% Māori; 18.4% Pasifika; 54.5% Asian; 4.3% Middle Eastern, Latin American and African New Zealanders (MELAA); and 1.5% other, which includes people giving their ethnicity as "New Zealander".

The percentage of people born overseas was 53.4, compared with 28.8% nationally.

Of those at least 15 years old, 2,013 (31.7%) people had a bachelor's or higher degree, 2,421 (38.2%) had a post-high school certificate or diploma, and 1,905 (30.0%) people exclusively held high school qualifications.