Public officials

• William Robertson (politician) (ca. 1760–1806), Scottish immigrant who became prominent in Upper Canada business and politics
• William J. Robertson (1817–1898), American jurist, from Virginia, served as first president of the Virginia Bar Association in 1889
• William H. Robertson (1823–1898), American politician who was a prominent power broker in New York from the 1850s to the 1890s
• William Robertson (Ontario) (born 1897), Canadian political figure; represented Wentworth in Legislative Assembly of Ontario (1943–48)
• Bill Robertson (born 1938), American local political figure; Democrat from Louisiana; since 1990, mayor of Minden in Webster Parish

Sports figures

• William Robertson (cricketer) (1861–1938), Australian right-handed batsman, known as "Digger Robertson" who played in 1885
• William Robertson (Welsh footballer) (1873–after 1903), Welsh inside-forward, later wing-half, whose career lasted from 1894 to 1903
• William Robertson (English footballer) (born 1984), English defender; career began 2006; plays for New Zealand team Canterbury United

Writers

• William Robertson (historian) (1721–1793), Scottish historian who served as Principal of the University of Edinburgh from 1762 to 1793
• Thomas William Robertson (1829–1871), Anglo-Irish playwright and producer/director who introduced innovative stage techniques

Clergymen

• Frederick William Robertson (1816–1853), English minister remembered as "Robertson of Brighton" for his deeply-felt sermons
• William Bruce Robertson (1820–1886), Scottish Secession/United Presbyterian Church minister renowned as a preacher for 35 years

Military personnel

• William Robertson (VC) (1865–1949), Scottish sergeant-major, received Britain's highest military award during the Boer War in 1899
• William Robertson, American army second lieutenant made famous by the Handshake of Torgau on Elbe Day, April 25, 1945

See also

• William Robertson Boggs (1829–1911), American military leader; Georgia-born Civil War brigadier general in the Confederate Army
• William Robertson Smith (1846–1894), Scottish orientalist, Old Testament scholar and editor of the Encyclopedia Britannica
• William Robertson McKenney (1851–1916), American politician who, in March 1895–May 1896, represented Virginia in U. S. Congress
• William Robertson Nicoll (1851–1923), Scottish Nonconformist minister and prolic writer and founder of literary publications
• William Robertson Coe (1869–1955), English-born American top business executive and philanthropist
• William Robertson Wood (1874–after 1920), Canadian politician and Presbyterian minister in Manitoba legislature 1915–20
• William Robertson Warren (1879–1927), Newfoundland politician who, in July 1923–April 1924, served as the dominion's Prime Minister
• Robertson