Perceptions of barriers to health promotion were examined in three groups of individuals with disabilities: (1) those with multiple sclerosis, (2) those with postpolio syndrome, and (3) polio survivors without postpolio syndrome. While there were small statistically significant differences among the three groups, all rated fatigue and impairment as their most frequent problems. For all groups, financial and interpersonal resources contributed significantly to the prediction of barriers, after accounting for perceived impairment. The findings suggest that health professionals should explore thoroughly the nature of individuals’ perceived barriers to staying healthy, so that they can target their health-promoting interventions most effectively.