Objective: To examine longitudinal trajectories of perceived weight from adolescence to early adulthood by gender. Methods: We analyzed 9 waves (1997-2005) of data from the National Longitudinal Survey of Youth (N = 8302) using Mplus. Results: Perceived overweight increased over time among girls and did not level off until 23 years of age. Blacks had a lower perceived weight for their actual weight and a slower rate of increase in perceived weight than did whites. Conclusion: Intervention programs designed to prevent or reduce obesity should evaluate weight perceptions for both adolescents and young adults prior to implementing each intervention.