Encyclopedias, Almanacs, Transcripts, and Maps
- Ignath, Lujza Linczegh (b. 1891)
- Ignatz Venetz
- Ignaz Phillip Semmelweis
- Igor Ivanovich Sikorsky
- Igor Rostislavich Shaferevich
- Igor Vasilevich Kurchatov
- Iguanas
- Iguanas
- II. Mental Patients' Rights
- Illich, Ivan
- Ilya Prigogine
- IMBAS
- Immaculate Heart Servants of Mary
- Immigration, Ethical and Health Issues of
- Immortality and Survival (Magazine)
- Immune Stimulation, as a Vaccine
- Immunity, Cell Mediated
- Immunity, Humoral Regulation
- Immunity: Active, Passive, and Delayed
- Immunodeficiency Disease Syndromes