The Ace O'Clubs was a public drinking establishment located in the Hob's Bay neighborhood of Metropolis.
It was owned and operated by Bibbo Bibbowski, who purported himself to be Superman's biggest fan. In fact, Bibbo maintained a zero-tolerance attitude against any patron who dared to bad-mouth the Man of Steel. It was not uncommon for Bibbo to personally toss such an individual out on their ear. Like most bars and pubs, the Ace O'Clubs was no stranger to violence. To keep the peace, Bibbo always had his trusty double-barrel shotgun at the ready should things ever get too wild. The Ace O'Clubs was occasionally victimized by various city-wide threats, all of which involved Superman in some way. During the "Battle for Metropolis", a group of looters began vandalizing the front window, but Bibbo drove them away.
- The Ace o'Clubs's address is 1938 Simon Street.
- In DC Universe Online, the Ace o'Clubs is located in Suicide Slum. It's part of the Booster Gold Tour, and Superman can be found on its roof for the "Fanboy" feat.