Campus Dakwah Institute (Lembaga Dakwah Kampus, often abbreviated as LDK) is a collective term for a student organization in Indonesia aimed as a union for Muslim campus students as well as medium for proselytization of Islam (dawah). Most universities in Indonesia have their own LDK. In each campus, LDK can be different in its organization, in which different names are often employed, including Unit Kegiatan Mahasiswa Islam (Islamic Student Activity Unit), Kerohanian Islam (Islamic Spirituality), Forum Studi Islam (Islamic Studies Forum), and Badan Kerohanian Islam (Islamic Spiritual Body).