Tallheo is the location of a former village of the Nuxalk known as Talyu, and is a former cannery town near Bella Coola, British Columbia, Canada, on North Bentinck Arm. Tallheo is also the name of the dialect of the Nuxalk language spoken by the Talhyumc, the particular subgroup of the Nuxalk who live there.

The Nuxalk people , also referred to as the Bella Coola, Bellacoola or Bilchula, are an Indigenous First Nation of the Pacific Northwest Coast, centred in the area in and around Bella Coola, British Columbia. Their language is also called Nuxalk. Their on-reserve tribal government is the Nuxalk Nation.