Duncan Graham

Duncan Graham may refer to:


 * Duncan Archibald Graham (1882–1974), Canadian physician and academic
 * Duncan Graham (writer) (born 1938), Australian journalist and blogger
 * Duncan Graham (Canadian politician) (1845–1934), Canadian Member of Parliament for Ontario North, 1897–1900
 * Duncan Graham Ross (1891-1982), Canadian Member of Parliament for Middlesex East, 1935–1945
 * Duncan Macgregor Graham (1867–1942), British Member of Parliament for Hamilton, 1918–1942
 * Duncan Graham, South Australian playwright and winner of the Jill Blewett Playwright's Award in 2008 and 2016