Canada's long and complex relationship with the United States has had a significant impact on its history, economy, and culture. The two countries consider themselves among the "closest [of] allies". They share the longest border between any two nations in the world, and also have significant military interoperability. Both Americans and Canadians have generally ranked each other as one of their respective "favorite nations". Canadian peacekeeping is deeply embedded in Canadian culture and a distinguishing feature that Canadians feel sets their foreign policy apart from the United States. Canadian Anti-Americanism manifests itself in a variety of ways, ranging from political, to cultural.

The culture of Canada embodies the artistic, culinary, literary, humour, musical, political and social elements that are representative of Canadians. Throughout Canada's history, its culture has been influenced firstly by its indigenous cultures, and later by European culture and traditions, mostly by the British and French. Over time, elements of the cultures of Canada's immigrant populations have become incorporated to form a Canadian cultural mosaic. Certain segments of Canada's population have, to varying extents, also been influenced by American culture due to shared language, significant media penetration and geographic proximity.