An outbreak of Campylobacter jejuni enteritis occurred among people who had attended a meal where raw milk was served. A case control study was conducted using instances of illness as cases; those who attended the event but did not become ill served as controls. Thirteen of 20 people who had attended the meal became ill. C. jejuni was cultured from five of six stools that were submitted. Raw milk consumption was strongly associated with illness (p = .0072, Fisher exact test). Although C. jejuni outbreaks associated with milk can be prevented with pasteurization, they still occur in association with raw milk consumption.