In psychology, the right-wing authoritarian (RWA) is a personality type that describes somebody who is highly submissive to their authority figures, acts aggressively in the name of said authorities, and is conformist in thought and behavior. The prevalence of this personality type in a population varies from culture to culture, as a person's upbringing and education play a strong role in determining whether somebody develops this sort of personality.

The right-wing authoritarian personality was defined by Bob Altemeyer as a refinement of the research of Theodor Adorno. Adorno was the first to propose the existence of an authoritarian personality as part of an attempt to explain the rise of fascism and the Holocaust, but his theory fell into disfavor because it was based on Freudian pseudo-science. Altemeyer nonetheless felt that Adorno was on to something, and so developed a more scientifically rigorous theory.

The RWA scale was designed to measure authoritarianism in North America. It has proven to be similarly reliable in English-speaking countries such as Australia, but some versions like the "RWA Short Scale" has been less effective in other countries such as France due to being optimised for english-speaking cultural differences and translation issues.