- Yang, Yunan (New York University) (1)
- Yankauer, Sidney, 1872-1932 (1)
- Yao, David (Columbia University) (1)
- Yao, Lingxing (Case Western Reserve University) (1)
- Yapp, Thomas (3)
- Yarborough, H., active 1781 (1)
- Yariv, Ehud (Technion-Israel Institute of Technology) (1)
- Yarmola, Tatiana (University of Geneva) (1)
- Yates, Gayle Graham (1)
- Yavari, Arash (Georgia Institute of Technology) (1)
- Yavneh, Irad (Technion-Israel Institute of Technology) (1)
- Ye Planre Building Company, Inc. (1)
- Yeager, Joseph, approximately 1792-1859 (2)
- Yeh, Harry (Oregon State University) (1)
- Yelda, Erin (1)
- Yellowstone Trail Association (U.S.) (1)
- Yelton, Elmer (2)
- Yen, Jeannette (Georgia Institute of Technology) (1)
- Yerby, Frank (1)
- Yergan, Max, 1892-1975 (18)