Public sector employers are challenged by the changing landscape of a diverse workforce and an evolving employment environment. This paper analyzes the relationship between generational cohort and public service motivation (PSM). Drawing upon PSM theory and social generation frameworks, this investigation explores Millennials’ level of PSM compared to other generations and how Millennial PSM relates to the job outcomes of organizational commitment and job satisfaction. Results from a survey of state governmental agency employees indicates that Millennial public sector workers are less likely than older generation workers to have high levels of PSM. Other aspects of PSM are explored. Results overall are insufficient to warrant organizational attention on generational differences of PSM