Encyclopedias, Almanacs, Transcripts, and Maps
- Institute of Peruvian Studies (IEP)
- Institute of Women's Studies of Bir Zeit University
- Institutional Acts
- Institutional Revolutionary Party (PRI)
- Instituto Histórico e Geográfico Brasileiro
- Instituto Nacional de las Mujeres
- Instituto Nacional Indigenista
- Instituto Politécnico Nacional
- Instituto Tecnológico Autónomo de Mexico
- Instituto Tecnológico de Estudios Superiores de Monterrey
- Integralist Action (AIB)
- Intelligence Organizations
- Intendancy System
- Intensional Transitive Verbs
- Inter-American Congress of Women
- Inter-American Democratic Charter, 2001
- Inter-American Development Bank (IDB)
- Inter-American Foundation (IAF)
- Inter-American Organizations
- Inter-American System