Foster Bar, originally known as Foster's Bar, is a gold-bearing sandbar in the Fraser Canyon of British Columbia, Canada as well as the name used for the surrounding locality, which includes Nesikep Indian Reserve 6 and Nesikep Indian Reserve 6A of the Cayoose Creek First Nation of the St'at'imc people and Lytton Indian Reserves Nos. 6A and 5B and Seah Indian Reserve No. 5 of the Lytton First Nation of the Nlaka'pamux people.