The Gulf is a New Zealand-set crime drama series, first broadcast on the Three network on 26 August 2019. The series, described as New Zealand's answer to "scandi-noir", follows troubled investigator DSS Jess Savage, played by Kate Elliott, who solves cases on her home of Waiheke Island, all whilst trying to piece together the events surrounding the death of her husband in a seemingly routine car crash. The title refers to the Hauraki Gulf which separates the island from the mainland.

Following a successful debut run in 2019, the series was commissioned for a second run in early 2020, premiering on March 1, 2021. Outside of New Zealand, the series has been sold to Netflix, Amazon Prime Video in the United States and Sundance Now. The series also broadcast on Alibi in the UK, with the first series airing from February 26, 2020, with each two-part story combined into one single broadcast. The second series premiered on December 15, 2021.