The Block NZ is a New Zealand reality television series based on the popular Australian series The Block. The first season premiered on Three on 4 July 2012.

The show is hosted by former New Zealand cricketer Mark Richardson and Shelley Ferguson, while Peter Wolfkamp serves as site foreman. It follows four couples as they compete against each other to completely renovate, room by room, four neighbouring houses in Auckland, and then sell them at auction. Each couple keeps any profit made on the house, and the winner receives a bonus cash sum.The current main sponsors are paint manufacturer Resene, car manufacturer Suzuki, flooring retailer Flooring Xtra, and fast food chain Subway. Throughout seasons 1–2, car manufacturer Mazda was also a main sponsor, but for season 3, the sponsorship was awarded to car manufacturer Honda. Other previous sponsors include Bunnings Warehouse, BP's Wild Bean Cafe, AMI Insurance and Pita Pit.

The series premiered in Australia on 9Go! on 12 August 2012.

The eleventh series, which was set to air in 2023, will be postponed to 2024 due to a "challenging house market" and the dismal results of the 10th season. House Rules NZ was produced in its place.