Avondale (/ˈævənˌdeɪl/ AV-ən-dayl) (Māori: Te Whau) is a suburb of Auckland, New Zealand, located to the east of the Whau River on the Auckland isthmus. Avondale was established as a small settlement but grew following the establishment of a railway line, which in turn led to the establishment of brickworks. Following the settlement's growth an independent borough was formed, but was soon amalgamated into the City of Auckland.

Avondale is one of the westernmost suburbs of the Auckland isthmus, forming the eastern shores of the Whau River, an estuarial arm of the Waitematā Harbour.^{[citation needed]}

The eastern shores of the Whau River was originally known by European settlers as Te Whau, until the 1880s. Whau is the Māori language name for Entelea arborescens, a native tree. The first European settler in the area was John Sheddon Adam in 1843. In 1845, the first wooden bridge across the Whau River was built. Settlement of the area did not occur in larger numbers until the late 1850s, with the completion of Great North Road. The name Avondale was popularised by John Bollard, who arrived in the area in 1861 and named the area for the Avondale Forest in County Wicklow, Ireland. Bollard became a prominent community leader and a Member of Parliament, living in Avondale until his death in 1915.

Expansion was rapid, with churches, stores and a public hall built by 1867. In 1880, the North Auckland Line railway stations opened along the Auckland isthmus and West Auckland, extending to Helensville by 1881, which included a station at Avondale. The new connection to Auckland led to a significant increase in growth in the area. Taking advantage of the newly opened station, New Zealand businessman William Hunt opened a brickworks adjacent to the railway line at St Georges Road, which continued to manufacture clay goods until 1969. Other early industries in the Avondale area included tanneries and mills. Avondale also had numerous market gardens, especially on the Rosebank Peninsula. It was here that the "Hayward" cultivar of the Chinese gooseberry, later known as the kiwifruit, was developed by Hayward Wright. In the late 19th century, Chinese-New Zealander Chan Ah Chee purchased 26 acres at land at Avondale, using the land as market gardens.

The Whau Road District became the Avondale Road District on 5 June 1882. In 1888, the Avondale Jockey Club formed, and began holding events at the Avondale Racecourse. In 1912, the racecourse was used as a military training camp for the 3rd (Auckland) Mounted Rifles during World War I, as an airfield in the following year, and as a temporary hospital during the 1918 influenza pandemic.

From the mid-1920s Avondale became increasingly suburban. With a greater need to provide infrastructure for the area, the Avondale Borough Council was formed in 1922, it planned to take out a large loan to pay for these costs. The residents of Avondale voted against this plan, and instead voted to amalgamate with the City of Auckland to the east, in the hope that the city would be better able to finance works projects. After the vote was successful, Avondale Borough was absorbed into the Auckland City in 1927.

In 1924, a new town hall was built for the Avondale Borough. After the merger with Auckland City, there was no longer a need for borough offices, and the town hall was repurposed as a cinema, now known as the Hollywood Cinema.

In 1963, LynnMall, the first American-style shopping centre was opened in the neighbouring suburb of New Lynn. This negatively affected many of the shops in Avondale throughout the 1960s and 1970s.