Canada is home to 4.4 million individuals with Irish heritage, making it the third-largest ancestry in the country. Approximately one in eight Canadians can trace their roots back to regions like Cork, Kerry, Wexford, or Tipperary.

However, this number only reflects those who remained in Canada. It does not account for the families who passed through Canada and continued their journey to places like Boston, Chicago, and beyond, carrying with them Irish names and Canadian birth certificates that subsequent generations often overlooked.

With a law implemented in December 2025, some of these descendants may have been Canadian citizens without ever realizing it.

Exploring Lesser-Known Migration Routes

While many are aware of the Irish migration to America, fewer know about the significant influx into Canada. In 1847, during the height of the Great Famine, around 100,000 Irish emigrants traveled to British North America. They arrived at ports such as Quebec City, Saint John, and Halifax, with many succumbing to harsh conditions at the quarantine station on Grosse Île, where over 33,000 names are recorded.

Those who survived dispersed across present-day Ontario, Quebec, New Brunswick, and Nova Scotia. By 1871, the Irish constituted the largest ethnic group in most Canadian towns and cities outside of Montreal and Quebec City.

Irish migration to Canada predates the Famine and persisted long after its aftermath. Irish settlers were present in ‘New France’ in the 1600s, and Irish fishermen operated along the Newfoundland coast. In the decades leading up to the Famine, nearly 450,000 Irish immigrants arrived in British North America.

Tracing Irish Settlements in Canada

In the 1820s, an assisted-migration initiative associated with Peter Robinson brought numerous Irish families, primarily from Cork and Tipperary, to settle in Upper Canada. Concentrated around Peterborough, Lanark, and Carleton counties in present-day Ontario, these families left a lasting legacy. Notably, the city of Peterborough was named after Robinson, indicating a strong Irish presence in the region.

On the Atlantic coast, Irish heritage is intertwined with the fishing industry. Families from Wexford and Waterford played a crucial role in shaping the maritime history of Canada, leaving a lasting imprint on the region.