Rina Mahjaty, 2016. English Teachers’ Knowledge In Implementing 2013 Curriculum (A Study At State Islamic Senior High Schools in Banda Aceh). Thesis, Graduate Program in English Language Education Syiah Kuala University. Advisors: (1) Dr. Sofyan A. Gani, M.A. (2) Dr. Zulfadli A. Aziz, S.Pd., M.A Keywords: Curriculum, 2013 Curriculum, Knowledge, Standard of Content, Standard of Process, Standard of Evaluation. The Implementation of the 2013 Curriculum as a new curriculum plays an important role in the development of curriculum in Indonesia. Some changes in the new curriculum require teachers’ knowledge in such a spesific area such as in the standard of content, process and evaluation. The purpose of this study was to find out the extent of the teachers’ knowledge on standard of content, standard of process, and standard of evaluation of the 2013 curriculum. To fulfill the purpose of the study, sample of English teachers was taken from three State Islamic Senior High Schools in Banda Aceh. These teachers were asked to answer the questionnaire related to the implementation of 2013 Curiculum. The data were analyzed by using percentage formula and intrepreted by some criteria. The results of this study showed that teachers’ knowledge on the standard of content of 2013 Curriculum is “low” (40.38 %). On the standard of process of 2013 Curriculum is in “intermediate” level (41.34 %), and teachers’ knowledge on the standard of evaluation of 2013 Curriculum is the lowest result, it is in “low” level (35.71%). In order to resolve those problem, some pedagogical concerns for the teacher’s improvement of knowledge of 2013 Curriculum are recommended.