<P> The following is a list of current Pac - 12 Conference members' NCAA and AIAW championships . Current Pac - 12 members have won 500 NCAA national championships (As of May 31, 2017) becoming the first conference to win 500 team titles, which is 193 more than the next closest confernce, The Big Ten . Since the 1999 - 2000 academic year, the Pac - 12 claims a total of 150 NCAA team titles, including 10 in 2013 - 2014 . They have also led or tied the nation in NCAA Championships in 48 of the last 54 years, the only exceptions being in 1980 - 81, 1988 - 89, 1990 - 91 and 1995 - 96 when the conference finished second, and finished third in 1998 - 99 and 2004 - 2005 . </P> <P> This list also includes championships won by current Pac - 12 schools while members of the Pacific Coast Conference (PCC), a closely related league that was formed in 1916 and disbanded in 1959 . Although the current charter of what is now known as the Pac - 12 dates only to the formation of the Athletic Association of Western Universities immediately after the demise of the PCC, the Pac - 12 claims the PCC's history as its own . There is considerable continuity between the PCC and Pac - 12--eight of the nine final members of the PCC (all except Idaho) are now Pac - 12 members; five of these schools had founded the AAWU, and all eight had joined the AAWU by the 1964--65 school year . </P>

How many championships does the pac 12 have