Bendora Arboretum, Experimental arboretum in Namadgi National Park, Australia

Bendora Arboretum is a tree collection in Namadgi National Park, Australian Capital Territory, established in 1940. It holds fifty-two species planted in 9 x 9 blocks of 81 trees each, laid out in a grid. Signage describes the site's history and the botanical significance of the trees.

Bendora Arboretum was established in 1940 by Dr Charles Lane Poole, Director of the Forestry and Timber Bureau, as one of a series of experimental plantings to determine which commercial tree species should be grown in the Canberra district. It is listed on the Heritage Places Register of the ACT.

Lane Poole coined the name Bendora himself in 1940; it is not an Aboriginal word, despite a common belief that it is. Visitors can read the signage at the site, which sets out the arboretum's history and the botanical value of its trees, and use the picnic table at its centre.

The arboretum lies within Namadgi National Park and is reached on foot by bushwalkers; there is no marked trail network or stated walking time. Signage at the site describes its history and the botanical value of the trees. A single picnic table stands in the centre of the planting, among the 9 x 9 blocks.

The site survived a devastating bushfire in 2003, which demonstrated the resilience of the carefully selected tree species here under extreme conditions. This made the place a valuable example of species survival in fire.