Olearia traversiorum is a rapidly growing hardy tree endemic to the Chatham Islands (New Zealand). It is a common tree of the lowland forests and is now most commonly found on dune systems. It also occurs along the edge of larger lagoons and lakes and sometimes on cliff tops.

This olive-like tree has a tall narrow growth form growing to a height of 18m and has a trunk up to 1 m wide. Yellow flowers appear late spring and into summer and fruits appear from January to June. This threatened species is now sold in specialised nurseries.