Employment discrimination based on race, ethnicity, and nationality remains prevalent in many countries. Formal and interpersonal discrimination have a variety of negative individual and organizational consequences including employee attitudes, employee performance, and financial implications for the organization. Multiple strategies can be used to prevent or reduce the likelihood of discrimination, including establishing clear policies and holding employees accountable, diversity training programs, and maintaining nondiscriminatory selection and compensation systems. Areas for future research on employment discrimination related to race, ethnicity, and nationality are discussed.