The Na-Dené language family is a group of indigenous languages primarily spoken in North America. It includes languages such as Navajo and Apache, which are part of the Southern branch, as well as languages like Tlingit and Athabaskan, found in the Northern branch. This language family is known for its complex verb structures and rich oral traditions. The Na-Dené languages are primarily spoken by various Native American tribes, and they play a crucial role in preserving cultural identity and heritage among these communities.