Wainuioru is small rural settlement in Wellington Region, New Zealand, just east of Masterton and north of Wainuioru River.

The settlement has a town hall and volunteer fire station.

[1] The settlement has two heritage sites: Wainuioru is part of the Whareama statistical area.

[7] Most students come from the surrounding rural area, but many come from Masterton.

[8] This Wellington Region-related geography article is a stub.