The study aims at investigating the influence of English as a Foreign Language (EFL) students’ perfectionism and anxiety on their Willingness to Communicate (WTC) in EFL classes. To do so, a set of questionnaires, namely “Willingness To Communicate” (MacIntyre et al., 2001), “Foreign Language Classroom Anxiety” (Horwitz et al., 1986) and “Multidimensional Perfectionism Scales” (Hewitt & Flett, 1991) were distributed among 120 (50 males and 70 females) Iranian EFL university students. Stepwise multiple regression analysis was conducted to indicate the extent to which each independent variable (perfectionism and anxiety) could predict the dependent variable (WTC). The results showed that both EFL students’ anxiety (B=-.586, p<.0.05) and their perfectionism (B=-.224, P<.0.05), had a significantly negative influence on their WTC in language classes. These two independent variables could explain .456 percent of the variance in the dependent variable (WTC). The results of the study were discussed and the implications were made.
