Kwantlen First Nation
| Location of Kwantlen in Metro Vancouver | |
| People | Stó:lō | 
|---|---|
| Headquarters | Fort Langley | 
| Province | British Columbia | 
| Land | |
| Main reserve | McMillan Island 6 | 
| Other reserve(s) | List 
 | 
| Land area | 5.7 km2 | 
| Population (2025) | |
| On reserve | 68 | 
| On other land | 35 | 
| Off reserve | 311 | 
| Total population | 414 | 
| Website | |
Kwantlen First Nation (Halkomelem: qw̓ɑ:nƛ̓ə̓n̓) is a First Nations band government in British Columbia, Canada, located primarily on McMillan Island near Fort Langley. The Kwantlen people traditionally speak hən̓q̓əmin̓əm̓, the Downriver dialect of Halkomelem, one of the Salishan family languages.
The Kwantlen are a Stó:lō people (an ethnicity which includes the nearby Katzie and Kwikwetlem First Nations among many others throughout British Columbia's Lower Mainland region), though as of June 2018, Kwantlen withdrew from the Sto:lo Tribal Council and currently operates as an independent Nation.