Takanini is a southern suburb of Auckland, New Zealand. It is located on the shores of the Pahurehure Inlet, 28 kilometres southeast of the Auckland CBD.

The suburb is home to a Fonterra milk plant, the Addison housing development, as well as international horse breeding facilities throughout the area. The two major shopping centres in Takanini are Takanini Town Centre and Southgate Shopping Centre.

The suburb is named after Ihaka Takaanini, a 19th-century Māori chief of the area.

An old highway, the Great South Road, runs through Takanini, forming its main street. The road was constructed during the New Zealand Wars to transport supplies to the Waikato campaign. It was guarded by armed constabulary and was a designated military road.

The first successful aeroplane flights in New Zealand were made in Takanini in February 1911, when Vivian Walsh and his brother Leo flew a Howard Wright 1910 Biplane named the Manurewa at Glenora Park (an area near the modern-day Southgate Shopping Centre).

During the major reformation of local government in 1989, Takanini was included into the Papakura District boundaries.

From October 2010, after a review of the Royal Commission on Auckland Governance, the entire Auckland Region was amalgamated into a single city authority. As well as Papakura District, other territorial authorities such as North Shore City, Rodney District, Waitakere City, Auckland City, Manukau City and the Franklin District were abolished and the entire area amalgamated into a single Auckland city council. The suburb of Takanini is now in the Manurewa-Papakura Ward of the Auckland Council.

Takanini covers 10.26 km² (3.96 sq mi) and had an estimated population of 17,350 as of June 2025, with a population density of 1,691 people per km².