Lyman Duff
| Sir Lyman Duff | |
|---|---|
| Duff in 1910 | |
| 8th Chief Justice of Canada | |
| In office March 17, 1933 – January 6, 1944 | |
| Nominated by | Richard B. Bennett | 
| Appointed by | Earl of Bessborough | 
| Preceded by | Francis Anglin | 
| Succeeded by | Thibaudeau Rinfret | 
| Puisne Justice of the Supreme Court of Canada | |
| In office September 27, 1906 – March 17, 1933 | |
| Nominated by | Wilfrid Laurier | 
| Appointed by | Earl Grey | 
| Preceded by | Robert Sedgewick | 
| Succeeded by | Frank Hughes | 
| Personal details | |
| Born | Lyman Poore Duff January 7, 1865 Meaford, Canada West | 
| Died | April 26, 1955 (aged 90) Ottawa, Ontario | 
| Alma mater | University of Toronto Osgoode Hall Law School | 
Sir Lyman Poore Duff, PC, GCMG, PC(UK) (7 January 1865 – 26 April 1955) was a Canadian lawyer and judge who served as the eighth Chief Justice of Canada. He was the longest-serving justice of the Supreme Court of Canada, until Beverley McLachlin’s 17-year tenure from 2000-2017.