Ōtari-Wilton's Bush is a New Zealand botanical garden and forest reserve, located in Wellington's suburb of Wilton. The botanic garden covers an area of 5 hectare, and is dedicated solely to native plants. The forest reserve consists of 100 hectare of ancient and regenerating native forest.

One of the main attractions of Ōtari-Wilton's Bush is the canopy walkway.

Ōtari–Wilton's Bush is classified as a Garden of National Significance by the New Zealand Gardens Trust. It is also one of the Founding Gardens of the Trust.