The NWA Pacific Northwest Heavyweight Championship was a professional wrestling championship sanctioned by the National Wrestling Alliance (NWA) and defended in its member promotion Pacific Northwest Wrestling (PNW), which promoted shows in the U.S. states of Oregon and Washington, and occasionally other areas in the northwestern United States.

Pacific Northwest Wrestling (PNW) is the common name used to refer to several different professional wrestling companies, both past and present, based in Portland, Oregon, United States. The first such company was founded by Herb Owen in 1925. It was the Northwest territory of the National Wrestling Alliance from the Alliance's inception in 1948 until 1992. The area was brought to its prime by Herb's son, Don Owen, and this version of Pacific Northwest Wrestling saw many of the top names in pro wrestling come through on a regular basis. The Pacific Northwest was considered one of the main pro wrestling territories from the 1960s to the 1980s.