Laurentian language
| Laurentian | |
|---|---|
| Native to | Canada | 
| Region | Saint Lawrence River Valley | 
| Ethnicity | St. Lawrence Iroquoians | 
| Extinct | late 16th century | 
| Iroquoian
 
 | |
| Language codes | |
| ISO 639-3 | lre | 
| lre | |
| Glottolog | laur1250 | 
| Territory occupied by the St. Lawrence Iroquois, circa 1535 | |
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| Indigenous peoples in Canada | 
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Laurentian, or St. Lawrence Iroquoian, was an Iroquoian language spoken until the late 16th century along the shores of the Saint Lawrence River in present-day Quebec and Ontario, Canada. It is believed to have disappeared with the extinction of the St. Lawrence Iroquoians, likely as a result of warfare by the more powerful Mohawk from the Haudenosaunee or Iroquois Confederacy to the south, in present-day New York state of the United States.