Flagstaff Hill is the highest peak within the Meehan Range in southeastern Tasmania, Australia, situated on the eastern shore of the island's capital, Hobart.

The hill is surrounded by bushland within the Meehan Range Nature Recreation Area, a protected reserve managed by the Tasmania Parks and Wildlife Service.

[4] Flagstaff Hill is part of a network of ridges and peaks within the Meehan Range, including nearby landmarks such as Mount Direction and Gunners Quoin.

Flagstaff Hill is composed of Jurassic dolerite, a dense, coarse-grained igneous rock that formed approximately 165 million years ago during a period of volcanic and tectonic activity.

The geology of Flagstaff Hill is consistent with that of the Meehan Range, which features a mix of dolerite cliffs, sedimentary layers, and occasional basalt outcrops.