"Bar Association" is the 87th episode of the science fiction television series Star Trek: Deep Space Nine, the fifteenth episode of the fourth season. It was directed by Star Trek: The Next Generation regular cast member LeVar Burton (who portrayed Chief Engineer Geordi La Forge).

The employees of Quark's Bar go on strike in protest of unfair treatment by management (Quark).

After suffering for weeks with an ear infection without a day off, Rom finally collapses in Quark's bar and is taken to the Infirmary. Dr. Bashir is outraged that Quark refuses to give any employees sick leave and casually suggests that Rom form a union. When Rom returns to work, Quark announces that he is cutting the salaries of his employees to compensate for declining profits due to a month-long Bajoran festival. Angered at this mistreatment and inspired by Bashir's words, Rom calls a secret meeting of Quark's waiters and dabo girls such as Leeta and announces that he wants to start a union.

While some of the Ferengi employees are initially fearful about angering the Ferengi Commerce Authority (FCA), Rom says that they have little to lose, and the union is formed. Indeed, Rom proves to be a capable and inspiring leader and sets about organizing a union. He makes up a list of demands — increased pay, shorter hours, paid sick leave — and presents them to Quark, who simply laughs them off. But Rom has the last laugh when he tells his brother that the new union is now on strike.

Rom pays customers to stay out of Quark's — a tactic that seems to be paying off, because the bar is practically deserted. On Captain Sisko's orders, Station Security Chief Odo refuses to disperse the strikers — even when Lt. Cdr. Worf, Chief O'Brien, and Dr. Bashir wind up in a brawl over a difference of opinion on the issue. Sisko, being absolutely disgusted that three of his senior staff would fight over such a thing decides to talk to Quark himself and when Quark refuses to cooperate; Sisko threatens to collect Quark's back rent and reimbursement for repairs and power if he doesn't settle, so Quark offers Rom a bribe to stop the strike. Rom, quoting Marx's Communist Manifesto ("Workers of the world, unite!"), refuses — but Quark's problems may be solved anyway. Liquidator Brunt from the FCA along with two hired thugs has arrived, and promises Quark he will put a stop to the strike by any means necessary as strikes are illegal in Ferengi culture.

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