This study investigates the factors influencing audience interest in parasport in Vietnam, addressing a critical gap in understanding spectator behavior in this emerging parasport market. Grounded in an extended Theory of Planned Behavior framework incorporating empathy, the research employed a quantitative approach that employed partial least squares structural equation modeling (PLS-SEM) with data gathered from 296 Generation Z and Generation Y participants. The research indicated that subjective norms, perceived behavioral control, and empathy substantially affect inclinations to participate in parasport as spectators. Notably, empathy demonstrated both direct and indirect effects on engagement intentions, with attitudes toward parasport mediating this relationship. These findings extend the application of behavioral theories to parasport spectatorship and highlight the multifaceted nature of audience engagement. While the study provides valuable insights for parasport organizers, policymakers, and marketers in Vietnam, suggesting strategies to enhance public engagement through leveraging social influence, improving accessibility, and fostering emotional connections with para-athletes, its findings are limited to younger generations (Gen Z and Gen Y) and may not be generalizable to other age groups. By solving these social, practical, and emotional elements, stakeholders can cultivate a more inclusive and supportive environment for parasport in Vietnam, promoting its growth and sustainability.