William Galloway may refer to:
Sir William Galloway (mining engineer) (1840–1927), British mining engineer and professor of mining William McNaughton Galloway (1840–1895), mayor of Brisbane, Queensland, Australia William Wilding Galloway (1854–1936), English businessman in the cotton industry William Johnson Galloway (1868–1931), British businessman and Conservative politician Hippo Galloway (William Hipple Galloway, ), American baseball player