Barker's Bush is a forest located near the banks of the Nith River in the rural town of Paris, Ontario, Canada. In terms of local geography, the bush is positioned directly north of Lion's Park, and less than one kilometre northwest of the forks of the Grand River.

Consisting of a mix of both coniferous and deciduous trees common to the Appalachian woodlands of southwestern Ontario, the bush itself is riddled with extensive bike and hiking trails which are used frequently, especially so through the warmer months (typically late Spring through early Fall).

The bush is considered to be public property, though it connects directly to private farmland in the west. For many decades, the only public land entrance to the bush was through Lion's Park in the south. This changed in 2002 when the local municipality built a steel footbridge from the east banks of the Nith to the west banks located in the bush itself. The skeletal remains of the river dam found at the southeastern edge of the bush are a relic from an era when shipping traffic was common on the Nith.