A large commercial district on the north shore of Hong Kong island, Wan Chai originally gained infamy for its seedy girlie bars, particularly around Lockhart Road. Nowadays it is much more than a place for officers on shore leave to find prostitutes (although this industry is quite alive and well in the area); plenty of bars and clubs have cleared a little elbow room with a less hedonistic approach.
From basements to the upper floors of highrises, you'll find your nightlife everywhere. For example, the Old China Hand is a staple of the area and an expat haunt, despite being a few decades from its raucous heyday. You'll want to try the New Makati, the little club right upstairs that gets packed early and stays that way. Dusk Till Dawn is also a perennial hot-spot, where you'll hear cover bands most weekends until dawn and the meat market vibe is often through the roof. Other notable bars and clubs that are usually packed on the weekends include Banana Joe's, The Habitat Lounge (check out the 29th floor view), Carnegie's, Space, and so many more. If you're at a loss of where to start, you'll find that people tend to congregate near "the corners", especially where both Luard and Fenwick intersect with Lockhart. Also, in case you needed any further convincing, it's also quite a bit cheaper to enjoy the fun here than at Hong Kong nightlife epicenter, Lan Kwai Fong.
Whatever your taste, you'll have no trouble finding a place to drink in Wan Chai; the problems will begin for you gentlemen when you figure out that the girl so interested in you at the bar is only interested in your money!