I study myself more than any other subject; it is my metaphysic, and my physic.

1770–1828) Scottish classical scholar philosopher diplomat and MP in Scotland and England
William Hamilton Drummond (1778–1865) poet
William Drummond 7th Viscount Strathallan (1810–1886) Scottish Conservative politician
William Henry Drummond (1854–1907) Canadian poet born in Ireland elected a fellow of the Royal Society of Literature in 1898
William Drummond 15th Earl of Perth (1871–1937) succeeded as 15th Earl of Perth in 1902
William Eugene Drummond (1876–1946) American architect
William Drummond a pseudonym for Arthur Calder-Marshall (1908-1992) British novelist
William J. Drummond (born 1944) American journalist
Bill Drummond (born 1953) Scottish musician author conceptual artist music-industry entrepreneur and co-founder of The KLF
Billy Drummond (born 1959) American jazz drummer
William Abernethy Drummond (born ca. 1617–1809) Bishop of Edinburgh.