John, Jon or Jonathan Robertson may refer to:
Politicians
United Kingdom politicians
- J. M. Robertson (John Mackinnon Robertson, 1856–1933), British journalist and Liberal MP for Tyneside 1906–1918
- John Robertson (Bothwell MP) (1867–1926), MP for Bothwell, Lanarkshire 1919–1926
- John Robertson (Berwick MP) (1898–1955), Labour Party MP 1945–1951 for Berwick and Haddington, then Berwick and East Lothian
- John Robertson (Paisley MP) (1913–1987), Labour Party MP 1961–1979, co-founder of the Scottish Labour Party
- John Home Robertson (born 1948), former MP and MSP
- John Robertson (Glasgow MP) (born 1952), former Labour Member of Parliament for Glasgow North West
Australian politicians