thumb|Pac-12's logo Pacific-12 Conference (forkortet PAC-12) er en amerikansk sportsliga bestående af de 12 største universiteter i staterne Washington, Oregon, Californien og Arizona, Colorado og Utah.

Ligaen har oprindeligt heddet Big Five, Big Six, Pacific-8 og Pacific-10 alt efter hvor mange universiteter, der deltog. Da ligaen hed Pacific-10 var deltagerne:

University of Arizona, Tucson, Arizona, Arizona Wildcats Arizona State University, Tempe, Arizona, Arizona State Sun Devils University of California, Berkeley, Californien, California Golden Bears University of Oregon, Eugene, Oregon, Oregon Ducks Oregon State University, Corvallis, Oregon, Oregon State Beavers Stanford University, Stanford, Californien, Stanford Cardinals University of California, Los Angeles, Californien, UCLA Bruins University of Southern California, Los Angeles, Californien, USC Trojans University of Washington, Seattle, Washington, Washington Huskies Washington State University, Pullman, Washington, Washington State Cougars

Kategori:Sportsligaer Kategori:Sport i Washington Kategori:Sport i Oregon Kategori:Sport i Californien Kategori:Sport i Arizona