Browse Entries - Y
- Yaldwyn, William Henry, Unknown
- Yallourn Power Station (1919 - )
- Yallourn W. Power Station
- Yarra Falls Limited (1917 - 1972)
- Yeates, C.S.S. (1872 - 1961), Astronomer and Scientific instrument maker
- Yen, Alan Louey (1950 - 2017), Entomologist and Invertebrate ecologist
- Yeomans, Neville Thomas (1928 - 2000), Psychiatrist
- Yoffe, Abraham David (1919 - ), Physicist
- Yonge Expedition
- see Great Barrier Reef Expedition (1928 - 1929) - Yonge, Charles Maurice (Maurice) (1899 - 1986), Malacologist, Marine scientist and Marine zoologist
- Youatt, Jean (1925 - 2017), Chemist
- Youl, Richard (1821 - 1897), Physician and Coroner
- Young, Christabel, Demographer
- Young, Frederick Mortimer (1860 - 1927), Astronomer and Geographer
- Young, Jess (1852 - 1909), Botanical collector and Explorer
- Young, John Atherton (1936 - 2004), Physiologist and Medical scientist
- Young, Lamont H. (1851 - 1880), Geologist
- Young, Michael, Psychiatrist and Hypnotherapist
- Young, Peter C. (1940 - ), Parasitologist and Science administrator
- Young, William (Bill), Water supply expert
- Young, William John (1878 - 1942), Biochemist
- Youngman McCann & Co (1855 - 1867)
- Youngman, Edward, Pharmaceutical manufacturer
- Youngman, Henry, Pharmaceutical manufacturer
- Youngman, McCann & Co, Henry and Edward Youngman (1850s - )
- Yuill, William John (1885 - 1960), Dairyman
- Yulara Tourist Resort
- Yule, Charles Bampfield (1806 - 1878), Marine surveyor and Naval officer
- Yung, Allen Peng (1935 - 2012), Physician