Volunteerism has been increasingly recognised as a health promotion activity for older adults. However, volunteerism has largely been the domain of those who are in good health with few to no physical limitations, and there is limited information about the experiences of older adults with disabilities. This study explores why older adults with mobility-limiting disabilities engage in volunteer work and their perceptions of the personal benefits of volunteering. Twenty older adults, from three Midwest towns in the United States of America, participated in semi-structured, in-depth, face-to-face interviews. Participants in this study identified as having serious difficulty walking or climbing stairs due to a health condition and had volunteered in the last year. Participants were selected purposively for maximum variation in terms of type of disability/impairment, race, gender and age. The constant comparative method of analysis was used to identify themes from their discussions. When asked about why they volunteer and the personal benefits of volunteering, participants discussed seeking out activities that were meaningful to them for both altruistic and more self-directed reasons. They identified a number of physical and emotional health benefits that they saw as directly and indirectly related to being able to participate in these meaningful activities. Findings from this study suggest that, for older adults with disabilities who are interested in volunteer activities, volunteerism can be a beneficial health promotion activity and a potential mechanism for increasing opportunities for meaningful inclusion and participation in their communities.