- Benjamin N. Cardozo Papers1
- Bennett Cerf Papers2
- Bennington Summer School of the Dance project71
- Biggert Collection of Architectural Vignettes on Commercial Stationery1,916
- Bill Weinberg sound recordings58
- Black Journalists oral history collection93
- Black labor leaders project7
- Black women oral history project1
- Bob Fass papers, circa 1960-20114,145
- Bomb Magazine records3
- Book Arts Collection24
- Book-of-the-Month Club project21
- Boris Sapir Papers10
- Brander Matthews Dramatic Museum Records, 1732-199517
- Brander Matthews Dramatic Museum records, 1864-19111
- Bronx Aerosol Arts oral history collection5
- Brotherhood of Sleeping Car Porters sound recordings9
- Buildings and Grounds Collection2
- Béla Bartók Manuscripts1
- C. L. R. James Papers111
- Carlyle family photograph album. Volume 1 (Tales of the Sun)35
- Carlyle family photograph album. Volume 246
- Carlyle family photograph album. Volume 344
- Carlyle family photograph album. Volume 437
- Carlyle family photograph album. Volume 531
- Carlyle family photograph album. Volume 648
- Carlyle family photograph album. Volume 758
- Carnegie Corporation of New York Records20,061
- Carnegie Corporation project. Part 176
- Carnegie Corporation project. Part 275
- Carnegie Corporation project. Part 354
- Carnegie Council on Ethics & International Affairs Records7
- Carnegie Endowment for International Peace New York and Washington Offices Records30
- Carnegie Foundation for the Advancement of Teaching Records19
- Catholic peace movement oral history collection8
- Cecile Starr Papers1
- Central Files1
- Chaliapin Family Papers1
- Children's Television Workshop project9
- China Democracy Movement Collection5
- China missionaries project1
- Chinese Oral History Project Collection1
- Chinese oral history project15
- Chip Lord Papers on Ant Farm8
- Cholly Atkins Papers1
- Christian evangelistic and religious education posters and Christian scrolls and Bible verses99
- Clyde Dorsett papers3
- Coins and paper currency of Tibet10
- Collection on Lama Govinda 1945 - 199344
- Columbia Armenian Oral History Archive139
- Columbia College Records2
- Columbia Crisis of 1968 project45
- Columbia University Bicentennial Collection1
- Columbia University Historical Recordings177
- Columbia University Law School alumnae oral history collection39
- Columbia University Rare Book and Manuscript Library Papyrus Collection3
- Columbia University School of Architecture : educational film collection9
- Columbia University student COVID-19 oral history collection18
- Columbia University. Graduate School of Architecture Planning and Preservation : Debates, Lectures, and Symposia217
- Columbia University. Graduate School of Architecture Planning and Preservation : Wednesday Night Lecture Series Audio Recordings169