Mulloon is a locality in the Queanbeyan-Palerang Region, Southern Tablelands, New South Wales, Australia.

[1] Mulloon lies generally to the south of the Kings Highway between Bungendore and Braidwood on both sides of Mulloon Creek, a tributary of Reedy Creek, which flows into the Shoalhaven River.

The high ground along the western edge of the Mulloon Creek catchment is part of the watershed of the Great Dividing Range.

[6] In recent years, the Mulloon Creek catchment has become well known, as the location of projects to revive watercourses and eroded and degraded land.

It is now being scaled up to involve around twenty landholders within the catchment, covering 23,000 hectares and 50 km of watercourses.