Robert Johnston

Robert Johnston may refer to:


 * Rob Johnston, Assistant General Secretary of International Transport Workers Federation
 * Robert Johnston (1783–1839), plantation owner in Jamaica
 * Bert Johnston (footballer) (1909–1968), Scottish footballer (Sunderland AFC)
 * Bob Johnston (1932–2015), American record producer
 * Bob Johnston (economist) (1924–2023), Australian economist, governor of the Reserve Bank of Australia
 * Bob Johnston (footballer) (1929–2012), Australian footballer for Melbourne
 * Bobby Johnston (born 1967), composer and musician
 * Robbie Johnston (born 1967), long-distance runner
 * Robert Johnston (VC) (1872–1950), Irish rugby union player and soldier
 * Robert Johnston (American politician) (1818–1885), American politician of the Confederate States
 * Robert Johnston (Canadian politician) (1856–1913), farmer and political figure in Ontario, Canada
 * Robert Johnston (cricketer) (1849–1897), Scottish-born New Zealand cricketer who played for Otago
 * Robert Johnston (naval officer) (1792–1882), early Australian Navy officer
 * Robert B. Johnston (born 1937), retired United States Marine Corps lieutenant general
 * Robert Daniel Johnston (1837–1919), brigadier general for the Confederate States of America during the American Civil War
 * Robert Mackenzie Johnston (1843–1918), Scottish-Australian statistician
 * Robert Matteson Johnston (1867–1920), American historian
 * Robert Mercer Johnston (1916–1985), Ontario political figure
 * Robert Smith Johnston, Lord Kincraig (1918–2004), Scottish judge
 * Georgie Fab (Robert George Johnston, born 1952), Canadian rock musician, guitarist, singer songwriter and producer
 * Robert S. Johnston, president of Saint Louis University
 * Robert Johnston, former guitarist for Life Without Buildings