Editing Lyman Duff (section)

{{Short description|Chief Justice of Canada from 1933 to 1944}}
{{Infobox officeholder
| honorific-prefix    = [[The Right Honourable]]
| name                = Sir Lyman Duff
| honorific-suffix    = {{postnominals|country=CAN|size=100%|PC|GCMG}}
| image               = Lyman Poore Duff.jpg <!--Topley Studio Fonds / Library and Archives Canada / PA-027987-->
| imagesize           = 
| caption             = Duff in 1910
| order               = 8th
| office              = Chief Justice of Canada
| termstart           = March 17, 1933
| termend             = January 6, 1944
| nominator           = [[R. B. Bennett|Richard B. Bennett]]
| appointer           = [[Earl of Bessborough]]
| predecessor         = [[Francis Anglin]]
| successor           = [[Thibaudeau Rinfret]]
| office2             = [[Puisne Justice]] of the [[Supreme Court of Canada]]
| termstart2          = September 27, 1906
| termend2            = March 17, 1933
| nominator2          = [[Wilfrid Laurier]]
| appointer2          = [[Earl Grey]]
| predecessor2        = [[Robert Sedgewick (jurist)|Robert Sedgewick]]
| successor2          = [[Frank Joseph Hughes|Frank Hughes]]
| birth_name          = Lyman Poore Duff
| birth_date          = {{birth date|1865|1|7|mf=y}}
| birth_place         = [[Meaford, Ontario|Meaford]], [[Canada West]]
| death_date          = {{death date and age|1955|4|26|1865|1|7|mf=y}}
| death_place         = [[Ottawa]], [[Ontario]]
| spouse              = 
| alma_mater          = [[University of Toronto]]<br/>[[Osgoode Hall Law School]]
}}

'''Sir Lyman Poore Duff''', {{postnominals|country=CAN|PC|GCMG|sep=,|size=100%}}, [[Privy Council (United Kingdom)|PC(UK)]] (7 January 1865 &ndash; 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]],<ref>{{cite web| url=https://www.thecanadianencyclopedia.ca/en/article/sir-lyman-poore-duff|title=Sir Lyman Poore Duff | author=David Ricardo Williams|publisher=[[The Canadian Encyclopedia]]|accessdate=August 26, 2019}}</ref> until [[Beverley McLachlin]]’s 17-year tenure from 2000-2017.<ref>{{Cite web |last=reporter |first=Tonda MacCharles Ottawa Bureau |date=2017-06-12 |title=Chief Justice Beverley McLachlin to retire from Supreme Court of Canada |url=https://www.thestar.com/news/canada/chief-justice-beverley-mclachlin-to-retire-from-supreme-court-of-canada/article_258422d3-e31d-55e3-841d-9a8a7033b384.html |access-date=2024-12-16 |website=Toronto Star |language=en}}</ref>