The topic of intention has recently received attention from behavior analysts (Hineline, 2003; Neuman, 2004). From a behavior-analytic perspective, it is important to identify the circumstances in which people utter such terms, and to identify the potential circumstances that maintain such utterances. It follows that from a behavior-analytic perspective, the focus is primarily on those who observe behavior and attribute intentions to that behavior. However, there has not been a distinction between "intention" and "intentionality." The current analysis stresses the distinction between the two terms, both from a traditional point of view (psychologist and layperson) and from a behavior-analytic point of view. From a behavior analyst's perspective, the distinction is important because observers may be responding to distinct functional relations when they attribute intention or intentionality to behavior. (Contains 2 footnotes.)