| Honours College Law |
Honours Education |
| Honours College Medicine |
Honours Education |
| Honours College Music Performance |
Honours Education |
| Honours College Tackling Global Challenges |
Honours Education |
| Human Diversity: Culture, History & Society (LUC) |
Major |
| Human Evolution |
Minor |
| ICT in Business and the Public Sector |
Master |
| Industrial Ecology |
Master |
| Intelligence Studies |
Minor |
| Internationaal en Intercultureel Management |
Minor |
| International Children's Rights (Advanced Master Programme) |
Master |
| International Civil and Commercial Law (Advanced programme) |
Master |
| International Dispute Settlement and Arbitration (IDSA) (Advanced Master) |
Master |
| International Justice (LUC) |
Major |
| International Leiden Leadership Programme |
Honours Education |
| International Relations and Diplomacy |
Master |
| International Relations: Culture and Politics |
Master |
| International Relations: European Union Studies |
Master |
| International Relations: European Union Studies |
Pre-master |
| International Relations: Global Conflict in the Modern Era |
Master |
| International Relations: Global Order in Historical Perspective |
Master |
| International Relations: Global Political Economy |
Master |
| International Studies |
Bachelor |
| Internetrecht |
Minor |
| Islam: Religion and Society |
Minor |
| Italian Language and Culture |
Bachelor |
| Japan Studies |
Bachelor |
| Journalism (LUC) |
Modular |
| Journalistiek en nieuwe media |
Minor |
| Juvenile Law |
Master |
| Keuzevakken Politicologie |
Optional course |
| Kindermishandeling en Verwaarlozing: een levensloopperspectief (interdisciplinaire minor) |
Minor |
| Korea Studies |
Bachelor |
| Languages (LUC) |
Modular |
| Latijns-Amerikastudies (Spaans/Portugees) |
Minor |
| Latin American Studies |
Master |
| Latin American Studies |
Bachelor |
| Latin American Studies (research) |
Master |
| Law - International Business Law (bachelor) |
Bachelor |
| Law (bachelor) |
Bachelor |
| Law & Finance (Advanced Master Programme) |
Master |
| Law and Digital Technologies (Advanced Master Programme) |
Master |
| Law, Culture and Development |
Minor |
| Law: European Law |
Master |
| Law: Public International Law |
Master |
| Leiden Leadership Programme |
Honours Education |
| Liberal Arts and Sciences: Global Challenges |
Bachelor |
| Life Science and Technology |
Bachelor |
| Life Science and Technology |
Master |
| Linguistics |
Bachelor |