Koonadan Historic Site is a Wiradjuri ceremonial and burial grounds, and designated Aboriginal Place, located 9 km northwest of Leeton, New South Wales.

A bora ground was also located between the Koonadan dune and Tuckerbil Swamp, but evidence of it has been erased by changes in land use.

[4][5] In the late 19th century, many Wiradjuri were removed from the Koonadan area to Warangesda and Euabalong, not returning until the gradual closing of missions and Aboriginal reserves between the mid-1920s to 1950s, when many settled in Leeton and Narrandera.

[3] After the 1950s, the site was cleared of trees, and Tuckerbil Swamp was drained, which has greatly diminished the areas food resources.

[3] In the early 1980s, sand mining of the Koonadan dune unearthed skeletal remains associated with two different skeletons, which were then reburied by the local Aboriginal community.