Kuranui College is a state co-educational secondary school for the South Wairarapa located in Greytown, New Zealand. The college opened in February 1960 to replace the four district high schools in Greytown, Featherston, Martinborough, and Carterton. The college was built in Greytown, for it was the midpoint of the towns. In the midst of the post-World War II baby boom. It has been said to have as many as 900 students in the mid-1970s, but since the end of the baby boom, that number has dropped. The college serves Years 9 to 13; the college has a roll of 749 students as of July 2022.