Addressing diversity issues in rehabilitation service provision is an ethical imperative. What needs to be considered are the ways in which diversity can be achieved without stigmatizing the same clients who are supposed to benefit from services. This chapter enhances conceptual clarity in the use of terms descriptive of minority status in clients seeking rehabilitation services. It characterizes multicultural counseling as an essential approach to address diversity issues that impact the quality of rehabilitation services. The chapter then proposes the ways in which rehabilitation professionals may enhance cultural sensitivity in their education and practice, and addresses ethical issues in rehabilitation counseling practice for which the use of multicultural counseling approaches would be a solution. Client outcomes in rehabilitation are a product of an interaction between rehabilitation service capacity and client participation, and counseling outcomes improve as client participation increases.