James Duff
James Duff may refer to:
Politicians
- Sir James Duff (British Army officer) (1752–1839), British army officer, who fought in the Napoleonic wars and a Member of Parliament
 - James Grant Duff (1789–1858), Indian soldier and statesman
 - James Duff (North Norfolk MP) (1831–1878), British MP for North Norfolk
 - James Stoddart Duff (1856–1916), Canadian politician
 - James Augustine Duff (1872–1943), Ulster Unionist politician in Northern Ireland
 - James H. Duff (1883–1969), Pennsylvanian politician
 - James Duff, 2nd Earl Fife (1729–1809), MP for Banffshire and Elginshire
 - James Duff, 4th Earl Fife (1776–1857), MP for Banffshire
 - James Duff, 5th Earl Fife (1814–1879), MP for Banffshire
 
Others
- Sir James Duff, 1st Baronet (died 1815), of the Duff-Gordon baronets
 - James Duff Duff (1860–1940), English translator and classical scholar
 - James Fitzjames Duff (1898–1970), British educationalist
 - James Duff (businessman), American billionaire businessman
 - James Duff (writer) (born 1955), American screenwriter and playwright
 - James C. Duff, Director of the Administrative Office of the United States Courts
 
See also
- Jamie Duff (born 1989), Scottish association football player