Tea Tree Flat is a picnic area located within Errinundra National Park, Victoria, Australia, situated along Greens Road. The site sits in one of Victoria's most significant cool temperate rainforest regions, with the Delegate River nearby.

Visitors should be aware that seasonal deer stalking is permitted within Errinundra National Park from February 15 to December 15 each year, though hunting is not allowed within 100 metres of campgrounds and picnic areas.

Through traffic along Greens Road past the area is permitted. Parks Victoria advises checking current conditions before visiting, as the site may be subject to closures or reported issues.