Roland Clark Davis (December 20, 1902– February 23, 1961) was an American psychologist recognized for his innovation in instrumentation and measurement of electrophysiological phenomena.
Davis contributed to the measurement of electrodermal activity, gastric reflexes, and muscle action potentials.
Davis published over 70 articles on psychophysiology and related topics across a 30-year career and mentored many graduate students at Indiana University Bloomington from 1931 through 1961.