In business, it is well known that the generation known as the millennials (Gen Y) are afflicted with higher levels of narcissism. Today, millennials are on the trajectory to become the dominant inhabitants in organizations. However, what is not clear is how the millennials and their elevated levels of narcissism are impacting organizational performance, specifically as it relates to the supply chain. This paper examines the literature on narcissism’s influence on organizational decision making and millennial behavior, and how this personality trait can destructively impact supply chain performance. An amalgamation of the research suggests that narcissistic millennials can cause negative supply chain outcomes. These effects informs organizations on the need for countermeasures to maintain business viability.