The 2010–13 Big East Conference realignment refers to the Big East Conference dealing with several proposed and actual conference expansion and reduction plans among various NCAA conferences and institutions. Following on the 2005 NCAA conference realignment, resulting in the move of 23 teams across various conferences after an initial raid of three Big East teams, the Big East was severely impacted in the follow-up 2010–14 NCAA conference realignment. Beginning in the 2010-11 academic year and continuing into 2013, 13 Big East schools announced their departure for other conferences and 13 other schools announced plans to join the conference (eight as all-sports members, and five for football only), but three of the latter group later backed out of their plans to join (one for all sports, and the other two for football only). Most notably, the seven schools that did not sponsor football in Division I FBS announced in December 2012 that they would leave as a group, which led to a formal split of the conference effective in July 2013.
In the end, the "Big East" name, history, and contract to the Big East Tournament location rights at Madison Square Garden were exchanged for almost the entire balance of over $110 million left in the NCAA National Tournament prize pool accumulated by the Big East in prior years. The FBS schools retained the charter of the original 1979-2012 Big East Conference, starting the 2013 academic year under the new name of American Athletic Conference.
The Big East was founded in 1979 by seven universities in the Northeastern United States—Boston College (BC), Connecticut (UConn), Georgetown, Providence, St. John's, Seton Hall, and Syracuse. The seven founders consisted of five Catholic institutions, one private but secular university (Syracuse) and one public school (UConn). More significantly, only two of these schools—BC and Syracuse—then played football in the top-level Division I-A (now Division I FBS). Another Catholic school, Villanova, joined the following year, and Pittsburgh (Pitt), a quasi-public institution, joined in 1982. At the time of their respective arrivals in the Big East, both Villanova and Pitt had I-A football programs, but Villanova dropped football after the 1980 season, only reinstating the sport in 1985 at the Division III level and upgrading to Division I-AA (now Division I FCS) in 1987.