This study aims to scrutinize the possible relationship between academic self-efficacy beliefs and foreign language achievement among prospective ELT teachers. To do so, the data for the study were collected through a questionnaire, "College Academic Self-Efficacy Scale" adapted from Owen & Froman (1988), consisting of 33 items measuring male and female ELT students' "Academic Self-Efficacy Beliefs" as a whole. The scale is a 5-point Likert scale ranging from "very little" (1) to "quite a lot" (5). The reliability was found r = 0.827. In this study it has been observed that there is statistically a significant relationship between "academic self-efficacy beliefs" and "prospective ELT teachers' achievement" among male and female groups.