Abstract: English as an international language (EIL) refers to the use of English by people of different nations in order to communicate with one another. Geopolitics refers to the political power in relation to geographic space. Within this broadly defined EIL context, this entry frames the political power of assessment and addresses this power from two dimensions. The first dimension is the geopolitics of international language testing, which deals with the testing of proficiency in English by speakers of other languages whose purpose of taking the test is to pursue academic study in English‐speaking countries, such as the Test of English as a Foreign Language (TOEFL) and the International English Language Testing System (IELTS). The second dimension focuses on the testing of proficiency in English by speakers of other languages whose purpose is for schooling in English‐speaking countries, such as the Ontario Secondary School Literacy Test (OSSLT) in Canada and the No Child Left Behind (NCLB) policy in the United States.