In Indonesia, santri is a term for someone who follows Islamic religious education in pesantren (Islamic boarding schools). Santri usually stay in the place until their education is complete. After completing their study period, some of them will serve the pesantren by becoming administrators. According to C.C. Berg, the term "santri" comes from Sanskrit shastri which means "one who learns Hindu scriptures"; it has the same root as the word shastra (literature).[1][2]
Starting in 2015, October 22 is designated as the National Santri Day (Hari Santri Nasional) in Indonesia. The date refers to "jihad resolution" issued by Hasyim Asy'ari of Nahdlatul Ulama to ulama and santri prior to the national revolution.[3]