This depends on the country where you desire to study and the language in which your course will be taught. If you are not a native English speaker but intend to pursue a course taught in English, you must provide English language test results to demonstrate your proficiency in the language. This is to ensure that you will be able to follow your course without any problems. Many countries worldwide, especially for graduate and business degrees, use English as a language of instruction. The university website usually lists the English-taught courses, and a national organization operates a centralized database that may also contain this information. The TOEFL and IELTS are widely accepted as evidence of English proficiency. You can also show English language proficiency using alternative tests such as GRE, GMAT, and SAT.