Obsidian Lair is a subzone of the Twilight Highlands. It is near the Obsidian Forest and has two entrances, one at and one at . Obsidia, one of Deathwing's daughters, is fought here during the quest . Tarvus the Vile, a rare dragonman, can also be found here.
- Patch 4.0.3a (2010-11-23): Added.