Adolphe-Basile Routhier
| Sir Adolphe-Basile Routhier | |
|---|---|
| Routhier in c. 1890 | |
| Born | May 8, 1839 Saint-Benoît (Saint-Placide), Lower Canada | 
| Died | June 27, 1920 (aged 81) | 
| Resting place | Cimetière Notre-Dame-de-Belmont | 
| Nationality | Canadian | 
| Occupation(s) | lawyer, author, judge, and professor | 
| Known for | Writing the lyrics of the original French version of the Canadian national anthem "O Canada" | 
| Title | President of the Royal Society of Canada | 
| Term | 1913–1914 | 
| Predecessor | Frank Dawson Adams | 
| Successor | Alfred Baker | 
| Spouse | Clorinde Mondelet (m. 1862) | 
Sir Adolphe-Basile Routhier FRSC (French pronunciation: [adɔlf bazil ʁutje]; May 8, 1839 – June 27, 1920) was a Canadian judge, author, and lyricist. He wrote the lyrics of the original French version of the Canadian national anthem "O Canada". He was born in Saint-Placide, Quebec, to Charles Routhier and Angélique Lafleur.