The Mir Yeshiva, also known as Yeshivas Mir Yerushalayim or the Mirrer Yeshiva, is a prestigious Orthodox Jewish institution in Jerusalem renowned for advanced Talmudic and Torah studies, attracting international Jewish scholars. Established in 1815 in the town of Mir (then part of the Russian Empire, now Belarus) by merchant and Torah scholar Chaim Tiktinsky, it has grown from a small Eastern European academy to become the largest yeshiva in the world, enrolling over 9,000 students. The yeshiva has a remarkable history of resilience, including multiple relocations due to geopolitical upheavals: during World War I it moved to Poltava, Ukraine; in the lead-up to World War II, under Rabbi Eliezer Yehuda Finkel, it evacuated to Vilna, Lithuania, and then a group of students and faculty fled to Shanghai, China, via Japan in 1941 to escape Nazi persecution. Post-war in 1944, the surviving core resettled permanently in Jerusalem's Beit Yisrael neighborhood. Today, it maintains a traditional Lithuanian-style approach to learning, emphasizing rigorous debate and scholarship without formal degrees, and attracts a global cohort primarily from Israel and the United States, as well as many other countries. The yeshiva operates multiple campuses in Jerusalem to accommodate its size and continues to influence Orthodox Jewish education worldwide, serving as a cornerstone of Haredi (ultra-Orthodox) Judaism while preserving Litvish (Lithuanian) Jewish traditions.