| Title | Assigned Subject |
|---|
| C.H. Street & Company Scrapbooks Collection | Agriculture |
| C.M. Silva & Son Correspondence. | Plant Science |
| California Agricultural Teaching Aid Photograph Collection. | California History |
| California Association of the American Registry of Professional Entomologists. Records | Entomology |
| California Canners and Growers Archives. | Food Processing and Manufacture |
| California League of Food Processors Archives. | Food Processing and Manufacture |
| California Lima Bean Growers Association. Collection. | Food Processing and Manufacture |
| California Native Plant Society. Collection. | Plant Science |
| California State Beekeepers Association Records. | Apiculture |
| California State Fair Photograph Collection. | California History |
| California Wool Growers' Association. Archives. | Animal Science |
| Camejo, Peter. Papers. | Political Science |
| Campbell, Charles. Papers. | Art and Architecture |
| Campbell, Mrs. Patrick (1865-1940). Collection. | Performing Arts |
| Campbell, Robert N. Papers. | Plant Science |
| Campbell, Robert N. Slides. | Plant Science |
| Carey, James R. Papers. | Entomology |
| Carpenter, Donald R. (1931-1995 ). Correspondence | Language and Literature |
| Carraco, Paul E. Papers. | Agriculture |
| Caterpillar 20. Collection. | Agricultural Technology |
| Cazden, Joann Cohn. Collection. | Language and Literature |
| Cebis, Frantisek R. Collection. | Viticulture and Enology |
| Charlet, Ray. Photograph Collection. | California History |
| Chesley, Marie. Collection. | California History |
| Chicano Record Collection. | Ethnic Studies |
| Chiles, Austin C. Papers. | Agriculture |
| China-Hawaii Photograph Collection. | Political Science |
| Chinese Fan and Embroidery Collection. | Art and Architecture |
| Chinese Nationalist Party Collection. | Political Science |
| Chinn, Frank J., M.D. Collection. | Political Science |
| Chis, Alex. Papers. | Political Science |
| Christensen, William Peter. Papers. | California History |
| Chumley, Dan. Papers | Performing Arts |
| Cincinnati Butchers' Supply Co. Collection. | Food Processing and Manufacture |
| Circle in the Square Photographs. | Performing Arts |
| City of Davis Collection. | California History |
| City of Davis/Maps. Collection. | California History |
| Clauson, William. Cycling Collection | |
| Clemmer, Richard O. Papers. | Ethnic Studies |
| Cleveland, John F. Papers. | Language and Literature |
| Clewe, John F. Correspondence | California History |
| Coke, J. Earl. Collection. | Agriculture |
| Cole, Toby (1916-2008). Archives. | Performing Arts |
| Collection of United States Bureau of Alcohol, Tobacco, and Firearms Records on California Wineries | Viticulture and Enology |
| College Park Association Collection | California History |
| Colvin, Jean and Crowley, Daniel J. Carnival of Salvador de Bahia, Brazil Videocassettes. | Ethnic Studies |
| Commission on Agricultural Education. Collection. | Agriculture |
| Commission on California Agriculture and Higher Education. | Agriculture |
| Committee of Small Magazine Editors/Publishers (COSMEP). Collection. | Language and Literature |
| Companhia Geral da Agricultura das Vinhas do Alto Douro. Collection. | Viticulture and Enology |
| Conn, Eric E. Papers. | |
| Contemporary Issues Collection. | Political Science |
| Cooke, George M. Papers. | Viticulture and Enology |
| Corman, Cid Letters to Frank Samperi. | Language and Literature |
| Corman, Cid. Letters to Graham Ackroyd. | Language and Literature |
| Corneretto, Alan. Wine Label Collection. | Viticulture and Enology |
| Corti Brothers, Inc. Collection. | Viticulture and Enology |
| Corti, Count Egon (1886-1953). Collection. | Art and Architecture |
| Cothran, Warren R. Papers | Entomology |
| Cotton, Charles P. (1919-2007). Bicycling Collection | |
| Counter Culture Poster Collection. | Art and Architecture |
| Cox, Rosalee. Collection. | California History |
| Coyote, Peter (1941- ). Papers. | Performing Arts |
| Craemer, Jeff. Collection. | Art and Architecture |
| Crafts, Alden S. (1897-1990). Papers. | Plant Science |
| Craig, Edward Gordon (1872-1966). Collection. | Performing Arts |
| Craig, Thornton W. Papers. | California History |
| Crampton, Beecher (1918-2003). Papers. | Plant Science |
| Crane, George Beldon. Diaries. | Viticulture and Enology |
| Crocheron, B. H. Papers. | Agriculture |
| Crowley, Daniel J. (1921-1998) Papers. | Ethnic Studies |
| Cruess, William V. (1886-1968). Papers. | Food Processing and Manufacture |
| Cruikshank, George (1792-1879). Collection. | Art and Architecture |
| Cunningham Store Account Book. | California History |
| Curley, Robert G. Collection. | Agricultural Technology |
