- IAS Programming (1032)
- IHRCA General Collection (1186)
- Il Grido Del Popolo (Newspaper) (5)
- Il Messaggero (Newspaper) (1)
- Il Nuovo Mondo (Newspaper) (13)
- Il Nuovo Vessillo (Newspaper) (10)
- Il Paese (Newspaper) (12)
- Il Vindice (Newspaper) (40)
- Images of Ballooning from the Piccard, Scholl, and Winzen Collections (1529)
- Individual Medieval Manuscript Leaves (63)
- Institute for Mathematics and its Applications Video Collection (3818)
- Intellectual and Cultural Leaders of Minnesota (1)
- Interracial Programs Records (147)
- Introduction to Punjabi (20)
- Introduction to Pushto (20)
- Inventory of the Minnesota Geological and Natural History Survey Papers (8)
- Italian American Collection (352)
- Italians in Duluth Oral History Project (9)
- Izcue y Arias (Firm) Records and Related Documents (7)
