We used the three-component model of commitment that includes affective, normative, and continuance components to study the commitment of volunteer workers to their organisation and beneficiaries, and examine how these components independently and jointly related to volunteers' turnover intentions. Based on a sample of 343 volunteers from various organisations, we found affective and normative organisational commitment and normative commitment to beneficiaries to be uniquely related to turnover intentions. In addition, we found two statistically significant cross-foci interactions among the components. Namely, affective and normative commitments to beneficiaries were more strongly related to turnover intentions when affective organisational commitment was low. The implications of these findings for future research on volunteers' multiple commitments are discussed.