Port Coquitlam is a city in British Columbia, Canada. Located 27 km east of Vancouver, it sits at the confluence of the Fraser River and the Pitt River. Coquitlam borders it on the north, the Coquitlam River borders it on the west, and the cities of Maple Ridge and Pitt Meadows lie across the Pitt River. Port Coquitlam is almost entirely bisected by a Canadian Pacific Railway yard with two underpass crossings. Port Coquitlam is often referred to as "Poco."

Port Coquitlam is not to be confused with the adjacent and larger Coquitlam The area was first used by the Coast Salish people, including the Kwikwetl'em people. The first European settlers began farming beside the Pitt River in 1859. The Canadian Pacific Railway moved its terminus from Vancouver to the banks of the Fraser River in 1911. Port Coquitlam was first incorporated as a municipality on March 7, 1913. Port Coquitlam was originally mostly farm land; however, because of the densification and expansion of Vancouver, it has now become mostly suburban housing, especially on its northern and southwestern sides. The economy has diversified with a variety of industrial and commercial developments, including metal fabrication, high technology industries, and transportation