Persons of National Historic Significance in Canada edit
| Person | Reason | Date |
|---|---|---|
| Maude Elizabeth Seymour Abbott | Pioneering researcher on heart disease | 1993 |
| Sir John Joseph Caldwell Abbott | Prime Minister of Canada | 1938 |
| Lady Aberdeen | Founder of the National Council of Women, Victorian Order of Nurses | 1979 |
| William Aberhart | Leader of the first Canadian Social Credit Party, Premier of Alberta | 1974 |
| Gabriel Acquin | Maliseet cultural broker, guide, and hunter | 1999 |
| Frank Dawson Adams | Geologist | 1943 |
| Mary Electa Adams | Leader of reform in women's education | 2004 |
| Thomas Beamish Akins | First archivist of Nova Scotia | 1938 |
| Emma Lajeunesse Gye Albani | Opera Singer | 1937 |
| William Donald Albright | Journalist | 1954 |