Longburn (or Karere) is a rural settlement just outside Palmerston North in the Manawatū-Whanganui area of New Zealand.

[3] Some of the region's earliest settlers settled in the Longburn area, including former Prime Minister of Denmark Bishop Ditlev Monrad and his family.

Today Fonterra's Longburn milk processing plant in conjunction with its sister plant in Pahiatua collects milk daily from Lake Tutira in northern Hawke's Bay down to Whitemans Valley near Wellington.

[7] It was sold by NMA in 1940 to Manchester's Co-operative Wholesale Society, and closed in October 1987[8] under the management of Waitaki International.

On 8 December 1908, the Wellington and Manawatu was absorbed into the New Zealand Railways, and Longburn lost its significant interchange status.

The branch line resulted in the official name of the station changing from Long Burn to Longburn Junction.

However, Longburn was a part of this only to the eastern side of the North Island Main Trunk Railway, effectively cutting the settlement in half.