- Language Courses (German for International Students)
- Language Learning (Tandem Learning Partners and Courses)
- Language Teaching Research
- Language Training "Zentrum für Fremdsprachenausbildung" (ZFA)
- Language Training, Bochum Institute of Intensive Language Training (LSI)
- Law (Faculty)
- Law of Peace (Institute for International Law of Peace and Armed Conflict)
- Law Qualification Centre
- Learning Infrastructure
- Lecture Podcast
- Legal Department
- lehrreich (Competition)
- Library
- Library of the Ruhr
- Linguistics
- Literary Studies
- Location of the University
- Lore Agnes Prize
- Lost-property Office
- Lotman Institute of Russian and Soviet Culture
- LSI (Bochum Institute of Intensive Language Training)