The power conferences are the most prominent athletic conferences in college football in the United States. They are part of the Football Bowl Subdivision (FBS) of the National Collegiate Athletic Association's Division I, the highest level of collegiate football in the nation, and are considered the most elite conferences within that tier. Power conferences have provided most of the participants in the College Football Playoff (CFP) and its predecessors, and generally have larger revenue, budgets, and television viewership than other college athletic programs. The Atlantic Coast Conference (ACC), Big Ten Conference, Big 12 Conference, and Southeastern Conference (SEC) are currently recognised as power conferences.

For decades, the most prominent conferences sent their teams to postseason bowl games, but the season frequently ended with multiple teams claiming the national championship. After the 1990 and 1991 seasons ended with consecutive split championships, several of the most prominent conferences and bowl games formed the Bowl Coalition (1992–1994) and later the Bowl Alliance (1995–1997) to provide a definitive national champion. In 1998, the six largest conferences—the ACC, Big Ten, Big 12, Big East, SEC, and Pac-12—and the four most prominent bowl games—the Fiesta, Orange, Rose, and Sugar Bowls—formed the Bowl Championship Series (BCS), with conference champions awarded Automatic Qualifying (AQ) status to the bowl games and, provisionally, the National Championship Game.

The defection of three Big East members to the ACC after the 2005 conference realignment gradually diminished its stature, and it eventually split into two following a realignment in the early 2010s; at the same time, the BCS was reorganised into the College Football Playoff, and the remaining AQ conferences were collectively referred to as the Power Five. A further realignment in the early 2020s saw the Pac-12 left with only two members after the 2023 season; the ACC, Big Ten, Big 12, and SEC now form the Power Four, with further suggestions that the Big Ten and SEC, the two conferences with the largest media contracts and many of the most prestigious programs, currently form a "Power Two" tier above the ACC and Big 12.

As of the ongoing 2025 season, the FBS has 136 members, divided between the Power Four, five other conferences known as the Group of Five (G5), the Pac-12, and two independent schools. The term power conference is not defined by the NCAA, but the conferences are identified individually under NCAA rules as "autonomy conferences", which grants them some degree of independence from standard NCAA rules, such as financial compensation for student athletes. The power conferences also compete in other collegiate sports, but are not necessarily the most prominent in each sport; for example, in men's college basketball, the Big East, which does not sponsor football, is also considered to be a power conference.

The ten FBS conferences as of the 2025–26 academic year are listed. For the Power Four, the members of each conference are also listed:

The power conferences are all part of NCAA Division I, which contains most of the largest and most competitive collegiate athletic programs in the United States, and the Football Bowl Subdivision (FBS), which is the higher of the two levels of college football within NCAA Division I. It is unknown where the term "Power Conference" originated; it is not officially documented by the NCAA, though it has been used since at least 2006. The top conferences in college football are called the "Power Four conferences": the Big Ten Conference, the Big 12 Conference, the Atlantic Coast Conference (ACC), and the Southeastern Conference (SEC). Since 2014, the power conferences have held some autonomy from the rest of Division I in regard to issues such as stipends and recruiting rules.

Roughly half of the schools in the FBS play in one of the Power Four conferences. The remaining schools are either independent or play in one of the conferences known as the Group of Six conferences, which consists of the American Conference ("American"), Conference USA (CUSA), the Mid-American Conference (MAC), the Mountain West Conference (MW), the Pac-12 Conference ("Pac-12"), and the Sun Belt Conference (SBC). The term "Power Four conferences" is often shortened to "P4", while the remaining conferences are referred to as the "Group of Six conferences", or "Group of Five conferences" before the Pac-12's loss of autonomy. The FBS has two independents as of the 2025 season: the Notre Dame Fighting Irish and the UConn Huskies. Notre Dame is considered equal to the Power Four schools, being a full (with the exception of football) member of the ACC with an annual five-game football scheduling agreement with that conference; Notre Dame also has its own national television contract and its own arrangement for access to the CFP-affiliated bowl games should it meet stated competitive criteria. The other independents are generally considered to be on the same level as the G6 conferences.

Compared to the G6 conferences, power conference schools have significantly higher revenue, due to television deals with major networks and streaming services. In 2022, the power conferences generated a combined $3.3 billion in revenue. College football games often draw strong television ratings, and, along with the NFL, college football was one of the few television properties to grow in live ratings between 2013 and 2023. In 2022, college football games between power conference teams made up five of the ten most-watched non-NFL sporting events among U.S. viewers. With 22.56 million viewers, the 2022 national championship game ranked as the most watched college football game of the year, and as the 33rd most-watched sporting event in the United States; only NFL games ranked higher. Almost every Power Four school has a home stadium capacity of at least 40,000, and the power conferences all had an average attendance of at least 46,000 in 2024. This compares to an FBS average attendance of just over 42,000 and Group of Six average attendance that ranged between 14,000 and 25,000 for each conference, with legacy Pac-12 members Oregon State and Washington State respectively averaging about 35,000 and 22,000. This revenue advantage allows Power Four conferences to pay higher salaries to coaches and invest in expensive athletic facilities and amenities. Although schools cannot directly pay student athletes, since 2021 school boosters and other third parties can pay student athletes for their name, image, and likeness (NIL) rights. Much of this NIL money goes to Power Four conference athletes, although numerous athletes from other conferences have also received NIL compensation.