MIT OpenCourseWare — All Courses by Department

About this list. Every course published on ocw.mit.edu as of August 15, 2026, grouped by MIT department — 2,585 in all. OCW publishes each offering separately, so a course taught in several years appears once per published version. Cross-listed courses appear under every department they belong to (marked “also in …”). Entries numbered RES.* are OCW supplemental resources (lecture-video collections, study materials) that OCW files alongside regular courses; a few entries link to MIT’s Open Learning Library. 35 resources that OCW does not file under any department are collected in the last section. Department assignments were cross-checked against MIT’s catalog API — all 37 department counts reconcile exactly.