2023–24 Atlantic Coast Conference men's basketball season

The 2023–24 Atlantic Coast Conference men's basketball season began with practices in October 2023, followed by the start of the 2023–24 NCAA Division I men's basketball season in November. Conference play began in December 2023 and concluded on March 9, 2024. The 2024 ACC men's basketball tournament was held at the Capital One Arena in Washington, D.C. from March 12 to March 16, 2024. This was the 70th season of Atlantic Coast Conference basketball.

North Carolina finished as regular season champions with a 17–3 conference record. They finished two games ahead of second place Duke. The title was North Carolina's thirty-third in program history, extending their ACC record. They reached the final of the ACC tournament but were defeated by tenth-seed NC State. As tenth-seed, NC State became the lowest seeded team to win the ACC Tournament in its history. The ACC sent five teams to the NCAA tournament and the teams finished with a record of 12–5 in the tournament. NC State was again the cinderella and advanced the furthest out of any team as an eleventh seed. They advanced to the Final Four, but lost to Purdue.

Coaching changes

 * On January 19, 2023, Mike Brey announced that the 2022–23 season would be his last at Notre Dame. He finished twenty-four seasons at the helm with a 483–280 record. Micah Shrewsberry was hired as the new head coach on March 23, 2023.
 * On March 10, 2023, Georgia Tech fired Josh Pastner after seven seasons. Damon Stoudamire was announced as the new head coach on March 13, 2023.
 * The 2022–23 season was Jim Boeheim's last at the helm of Syracuse. Boeheim was head coach at Syracuse for forty-seven years and had over one thousand wins as a college coach. He is one of only two coaches to surpass that mark. His retirement was announced on the same day as the announcement of Adrian Autry as the new head coach.

Coaches
Notes:
 * Year at school includes 2023–24 season.
 * Overall and ACC records are from the time at current school and are through the end of the 2022–23 season.
 * NCAA tournament appearances are from the time at current school only.
 * NCAA Final Fours and championship include time at other schools

Recruiting classes
Notes:
 * Rankings are up to date as of October 16, 2023.
 * NR stands for not ranked.

ACC Preseason Media poll
The preseason poll and Preseason All-ACC Teams were released on October 26, 2023, prior to the season beginning and after ACC Media Day. The results of the poll are below.

Preseason poll

 * 1) Duke – 757 (44)
 * 2) Miami – 693 (5)
 * 3) North Carolina – 670 (1)
 * 4) Virginia – 593 (1)
 * 5) Clemson – 570
 * 6) Wake Forest – 440
 * 7) NC State – 420
 * 8) Virginia Tech – 390
 * 9) Pittsburgh – 380
 * 10) Syracuse – 321
 * 11) Florida State – 294
 * 12) Boston College – 227
 * 13) Georgia Tech – 157
 * 14) Louisville – 108
 * 15) Notre Dame – 100

First-place votes shown in parentheses.

ACC preseason player of the year

 * Kyle Filipowski – Duke (35)
 * Armando Bacot – North Carolina (13)
 * PJ Hall – Clemson (2)
 * Tyrese Proctor – Duke (1)

ACC Preseason Freshman of the year

 * Elliot Cadeau – North Carolina (40)
 * Jared McCain – Duke (6)
 * Caleb Foster – Duke (3)
 * Donald Hand Jr. – Boston College (1)
 * Bub Carrington – Pittsburgh (1)

Early season tournaments
Source:

Conference matrix
This table summarizes the head-to-head results between teams in conference play. Each team will play 20 conference games, and at least 1 against each opponent.

Player of the week
Throughout the conference regular season, the Atlantic Coast Conference offices named one or two Players of the week and one or two Rookies of the week.

Records against other conferences
2023–24 records against non-conference foes. Records shown for regular season only. Statistics through games played on December 30, 2023.

ACC tournament

 * The 2023 Atlantic Coast Conference Basketball Tournament was held at the Capital One Arena in Washington, D.C., from March 12 to 16, 2024.

All-Americans
To earn "consensus" status, a player must win honors based on a point system computed from the four different all-America teams. The point system consists of three points for first team, two points for second team and one point for third team. No honorable mention or fourth team or lower are used in the computation. The top five totals plus ties are first team and the next five plus ties are second team.

ACC Awards
Source: