The purpose of the present study was to compare writing high achievers and low achievers TEFL (teaching English as foreign language) learners’ writing self-beliefs. Subjects, based on their officially recorded scores on the writing course, were assigned in two 22-member groups of high and low achievers. The adapted English version of Mills’ and Peron’s (2008) questionnaire and the Foreign Language Writing Self-Beliefs Instrument which assesses writing self-efficacy in the areas of organization, expression, content and grammar as well as writing self-concept, writing anxiety, perceived value of writing, and self-efficacy for self-regulation in writing were administered to evaluate each group’s writing self beliefs. The results of the two-way ANOVAs suggested that high achievers’ writing self beliefs were significantly higher than low achievers. Implications for researchers and educators are discussed.