- International News Photos (New York, N.Y.)4
- International Order of Odd Fellows. Lodge 134 (Brandonville, W. Va.)1
- International Order of Odd Fellows. Stonewall Lodge No. 1361
- International Order of the King's Daughters and Sons. North River Circle (Gloucester County, Va.)1
- International Union of Women Architects1
- International View Co.2
- Internet Vendor1
- Inting, Macring.1
- Ions, Willoughby, 1881-1977.1
- Iott, Anne, 1942-.1
- Iowa State University1
- Iowa String Quartet1
- Ipcar, Dahlov Zorach, 1917-.1
- Ipoustéguy, Jean, 1920-1
- Ippolito, Angelo.1