Colby-Bates-Bowdoin Consortium

The Colby-Bates-Bowdoin Consortium (CBB) is an athletic conference and academic consortium between three private liberal arts colleges in the U.S. state of Maine. The group consists of Colby College in Waterville, Bates College in Lewiston, and Bowdoin College in Brunswick. In allusion to the Big Three of the Ivy League, they are collectively known the "Maine Big Three", a play on words with the words "Maine" and "main". The school names are ordered by their geographical organization in Maine (north to south).

The colleges contest a variety of college sports between themselves, primarily in football and rowing. On the former, they compete for a CBB Championship Trophy in three-way football games in the Fall of their respective academic years. As of the 2023–24 season, Bowdoin leads the conference in wins, with 20; Colby has 17 and Bates has won 13. There have been eight three-way-ties: 1965, 1979, 1993, 1995, 2009, 2011, 2013, and 2022. For rowing, the schools contest the CBB Chase Regatta, an annual up-and-down river tourney for the President's Cup. The all-time leader of the Chase Regatta is Bates with a total of 18 composite wins, followed by Colby's 5 wins, concluding with Bowdoin's 1 win.