The Great Lounge was a location within the Ferengi beliefs.

Located in the Divine Treasury, it consisted of a highly paid celestial choirs. In 2371, Nog faced an experience from the Orb of Prophecy and Change leading him to see the Great Lounge which spoke to him of the infinite which secured his aid in breaking into a Blindvault and recovering the Orb of Contemplation. (DS9 short story: "The Orb of Opportunity")