Winchester is a small town in the South-Canterbury region of New Zealand's South Island.

State Highway 1 and the Main South Line railway pass through Winchester.

[5] The Temuka and Geraldine Agricultural and Pastoral Association show has been held on the Winchester Domain since 1910.

[7] Winchester is described as a rural settlement by Statistics New Zealand, and covers 0.68 km2 (0.26 sq mi).

[11] The 50 kilometre per hour speed limit has been extended by 140 metres to the north on the state highway 1 section running through Winchester from the end of October 2020.

This is due to concerns from local residents about vehicles travelling through Winchester at high speed.

[12] Work is almost complete in 2021 building a new roundabout on the intersection of Winchester-Geraldine, Tiplady, McKenzie and Coach roads.