The postseason began on December 15, and, aside from any all-star games that are scheduled, ended on January 8, 2024, with the College Football Playoff National Championship at NRG Stadium in Houston, Texas.

The Michigan Wolverines defeated the Washington Huskies by a score of 34–13 to claim the program's first national championship in the College Football Playoff (CFP) era, and their 12th overall.

[1] The season's Heisman Trophy winner was LSU Tigers quarterback Jayden Daniels, who led all players in total yards and set the single-season passer rating record.

[9] Six schools from CUSA joined the American Athletic Conference for the 2023 season—Charlotte, Florida Atlantic, North Texas, Rice, UAB, and UTSA.

[16][17] On December 3, 2023, the College Football Playoff selection committee announced its final team rankings for the year.

This was the first time that an undefeated Power Five conference champion (Florida State) was left out of the semifinals.

The East–West Shrine Bowl relocated from Nevada (where its prior two editions had been played) to Texas.

The Heisman Trophy is given to the year's most outstanding player Quarterback Running back Wide receiver Tight end Lineman Defensive front Defensive back The following players were recognized as consensus All-Americans for 2023.

[102] The CW also acquired the rights to air the Barstool Sports produced broadcast of the Arizona Bowl.

[103] Locally, Fresno State reached an agreement with TelevisaUnivision stations KTFF-DT and KBTF-CD to air the first ever exclusively Spanish-language television broadcast in FBS history on September 9.

[106] Greg McElroy replaced Blackledge as ESPN's #2 college football color commentator.

[108] In November 2023, ESPN International reached agreements with Sky Sports NFL to carry packages of games and studio programs in college football and basketball (replacing TNT Sports, which had previously held rights to ESPN International content).