2 B R 0 2 B is a science fiction short story by Kurt Vonnegut.

The title is pronounced "2 B R naught 2 B", referencing the famous phrase "to be, or not to be" from William Shakespeare's Hamlet, Prince of Denmark. In this story, the title refers to the telephone number one dials to schedule an assisted suicide with the Federal Bureau of Termination. Vonnegut's 1965 novel God Bless You, Mr. Rosewater describes a story by this name, attributing it to his recurring character Kilgore Trout, although the plot summary given is closer in nature to the eponymous tale from his short-story collection Welcome to the Monkey House.

The setting is a society in which aging has been cured, individuals have indefinite lifespans, and population control is used to limit the population of the United States to forty million. This is maintained through a combination of infanticide and government-assisted suicide - in short, in order for someone to be born, someone must first volunteer to die. As a result, births are few and far between, and deaths occur primarily by accident.fi