- Wally Swan Papers (9)
- Wangensteen Library Artifact Collection (5)
- Wangensteen Library General Collection (46)
- Wangensteen Library Photograph Albums and Texts (7)
- Wigington Pemberton Family Papers (447)
- William A. French Furniture Company Collection (291)
- William A. Howes Papers (25)
- William Channing Whitney Collection (75)
- William Gray Purcell Papers (2413)
- William Skinner Cooper Papers (2492)
- Williamsbridge YMCA Records (1)
- Women's League for Conservative Judaism Records (2)
- Women’s Co-operative Guild (Virginia, Minnesota) Records (29)
- World Alliance of YMCAs Records (17)
- World War I-related Records (21)
- World War Materials (Miscellaneous) (3)
- World War One Pamphlet Collection (4)
- World War Poster Collection (5561)
- Wright County, Minnesota (1913-1919) Collection of Timothy J. Johnson (100)
