Indu - jack
- industrial
- industrial bank
- Industrial College of the Armed Forces
- industrial development bond
- industrial show
- Industrial Society, theory of
- industrial union
- Industrial Union of Marine and Shipbuilding Workers of America
- Industrial Workers of America, Allied International Union
- Industrial Workers of the World
- Indy
- Indy 500
- ineligible alien
- INF
- infamous crime
- infant
- inferior federal courts
- infield
- infielder
- influence peddler
- infomercial
- information
- information blackout
- Information Resources Management College
- infotainment
- Ingalic
- Inge, William
- Ingersoll, Robert Green
- Ingersoll, Robert Hawley
- Inglewood
- inherent power
- inherent powers doctrine
- inheritance tax
- inherited audience
- initiative, referendum, and recall
- Injun
- Injun Joe
- injunction
- Inkster
- inland bill
