Tay–Thai is a term that refers to the cultural and linguistic group of the Thai people living in the Tay region of Vietnam. This group is known for its unique blend of Thai and Vietnamese influences, which is reflected in their customs, traditions, and language. The Tay–Thai people primarily inhabit the northern mountainous areas of Vietnam, where they engage in agriculture and traditional crafts. Their vibrant festivals and rich folklore contribute to the diverse cultural tapestry of the region, showcasing the interplay between different ethnic groups in Vietnam.