Totem poles (Haida: gyáaʼaang) are monumental carvings found in western Canada and the northwestern United States. They are a type of Indigenous Northwest Coast art, consisting of poles, posts or pillars, carved with symbols or figures. They are usually made from large trees, mostly western red cedar, by First Nations and Indigenous peoples of the Pacific Northwest Coast including northern Northwest Coast Haida, Tlingit, and Tsimshian communities in Southeast Alaska and British Columbia, Kwakwaka'wakw and Nuu-chah-nulth communities in southern British Columbia, and the Coast Salish communities in Washington and British Columbia.

The word totem derives from the Algonquian word odoodem [oˈtuːtɛm] meaning "(his) kinship group". The carvings may symbolize or commemorate ancestors, cultural beliefs that recount familiar legends, clan lineages, or notable events. The poles may also serve as functional architectural features, welcome signs for village visitors, mortuary vessels for the remains of deceased ancestors, or as a means to publicly ridicule someone. They may embody a historical narrative of significance to the people carving and installing the pole. Given the complexity and symbolic meanings of these various carvings, their placement and importance lies in the observer's knowledge and connection to the meanings of the figures and the culture in which they are embedded. Contrary to common misconception, they are not worshipped or the subject of spiritual practice, nor were they were used by all Indigenous peoples in the Americas.

Totem poles serve as important illustrations of family lineage and the cultural heritage of the Indigenous peoples in the islands and coastal areas of North America's Pacific Northwest, especially British Columbia, Canada, and coastal areas of Washington and southeastern Alaska in the United States. Families of traditional carvers come from the Haida, Tlingit, Tsimshian, Kwakwaka’wakw (Kwakiutl), Nuxalk (Bella Coola), and Nuu-chah-nulth (Nootka), among others. The poles are typically carved from the highly rot-resistant trunks of Thuja plicata trees (popularly known as giant cedar or western red cedar), which eventually decay in the moist, rainy climate of the coastal Pacific Northwest. Because of the region's climate and the nature of the materials used to make the poles, few examples carved before 1900 remain. Noteworthy examples, some dating as far back as 1880, include those at the Royal British Columbia Museum in Victoria, the Museum of Anthropology at UBC in Vancouver, the Canadian Museum of History in Gatineau, and the Totem Heritage Center in Ketchikan, Alaska.

Totem poles are the largest, but not the only, objects that coastal Pacific Northwest natives use to depict spiritual reverence, family legends, sacred beings and culturally important animals, people, or historical events. The freestanding poles seen by the region's first European explorers were likely preceded by a long history of decorative carving. Stylistic features of these poles were borrowed from earlier, smaller prototypes, or from the interior support posts of house beams.

Although 18th-century accounts of European explorers traveling along the coast indicate that decorated interior and exterior house posts existed prior to 1800, the posts were smaller and fewer in number than in subsequent decades. Prior to the 19th century, the lack of efficient carving tools, along with sufficient wealth and leisure time to devote to the craft, delayed the development of elaborately carved, freestanding poles. Before iron and steel arrived in the area, artists used tools made of stone, shells, or beaver teeth for carving. The process was slow and laborious; axes were unknown. By the late 18th century, the use of metal cutting tools enabled more complex carvings and increased production of totem poles. The tall monumental poles appearing in front of homes in coastal villages probably did not appear until after the beginning of the 19th century.

Eddie Malin has proposed that totem poles progressed from house posts, funerary containers, and memorial markers into symbols of clan and family wealth and prestige. He argues that the Haida people of the islands of Haida Gwaii originated carving of the poles, and that the practice spread outward to the Tsimshian and Tlingit, and then down the coast to the Indigenous people of British Columbia and northern Washington. Malin's theory is supported by the photographic documentation of the Pacific Northwest coast's cultural history and the more sophisticated designs of the Haida poles.

Accounts from the 1700s describe and illustrate carved poles and timber homes along the coast of the Pacific Northwest. By the early 19th century, widespread importation of iron and steel tools from Great Britain, the United States, and elsewhere led to easier and more rapid production of carved wooden goods, including poles.

In the 19th century, American and European trade and settlement initially led to the growth of totem-pole carving, but United States and Canadian policies and practices of acculturation and assimilation caused a decline in the development of Alaska Native and First Nations cultures and their crafts, and sharply reduced totem-pole production by the end of the century. Between 1830 and 1880, the maritime fur trade, mining, and fisheries gave rise to an accumulation of wealth among the coastal peoples. Much of it was spent and distributed in lavish potlatch celebrations, frequently associated with the construction and erection of totem poles. The monumental poles commissioned by wealthy family leaders to represent their social status and the importance of their families and clans. In the 1880s and 1890s, tourists, collectors, scientists and naturalist interested in Indigenous culture collected and photographed totem poles and other artifacts, many of which were put on display at expositions such as the 1876 Centennial Exposition in Philadelphia, Pennsylvania, and the 1893 World's Columbia Exposition in Chicago, Illinois.