- Labor Unions
- Laboratory Practice Standards and Guidelines
- Laboratory Services
- Laboratory Technician
- Land Use
- Landfills, Sanitary
- Landmark Public Health Laws and Court Decisions
- Langmuir, Alexander
- Latent Period
- Laveran, Alphonse
- Lay Concepts of Health and Illness
- LDL Cholesterol
- Lead
- Leadership
- Leeuwenhoek, Antoni van
- Legal Liability of Public Health Officials
- Legislation and Regulation
- Leishmaniasis
- Leprosy
- Licensing
- Life Expectancy and Life Tables
- Lifestyle
- Lind, James
- Lipoproteins
- Lister, Joseph
- Louis, Pierre Charles Alexandre
- Love Canal
- Lung Cancer
