Dargaville (Māori: Tākiwira) is a town located in the North Island of New Zealand. It is situated on the bank of the Northern Wairoa River in the Kaipara District of the Northland region. Dargaville is located 55 kilometres (34 mi) southwest of Whangārei, and 174 kilometres (108 mi) north of Auckland.

Dargaville is noted for the high proportion of residents of Croatian descent. The area around it is one of the chief regions in the country for cultivating kūmara (sweet potato) and so Dargaville is known by many locals as the "Kūmara Capital" of New Zealand.

The town was established by and named after timber merchant Joseph Dargaville (1837–1896), who purchased the then Tunatahi block from local Iwi. Dargaville was founded in 1872, during the 19th-century kauri gum and timber trade.

Dargaville was made a borough in 1908.

The area became known for a thriving industry that included gum digging and kauri logging, which was based mainly at Te Kōpuru, several kilometres south of Dargaville on the banks of the Wairoa River. The river was used to transport the huge logs downstream to shipbuilders and as a primary means of transport to Auckland. Dalmatian migrants were particularly prominent in the kauri gum extraction. After the gum and forestry industries started to decline after 1920, farming, especially dairy became a significant contributor to the economy.

The Wairoa River was the main method of transport around Dargaville until the 1940s.

Horses last raced at the Dargaville racecourse in 2016. A proposal in 2022 was submitted to redevelop the racecourse into 450 homes. This private plan change was accepted by the Kaipara Council and released for public consultation in July 2022.

The Bank of New Zealand closed its Dargaville branch in 2020. The Dargaville Town Hall had to be closed and partially demolished in 2023 following damage sustained during Cyclone Gabrielle.