Rodney L. Lowman (born 1949) is an American psychologist, academic administrator and entrepreneur whose major contributions have been in the areas of career assessment and counseling, ethical issues in Industrial and Organizational Psychology (I-O Psychology), the integration of clinical psychology and I-O psychology and helping to develop the field of consulting psychology. In a study of the most prolific contributors to the Consulting Psychology Journal: Practice and Research, Lowman was rated the second highest contributor for articles for the period 1992-2007.