The 2023 National Invitation Tournament was a single-elimination tournament of 32 NCAA Division I men's college basketball teams not selected to participate in the 2023 NCAA tournament. The tournament began on March 14 and ended on March 30. The first three rounds were played on campuses, with the semifinal and championship final played at Orleans Arena in the Las Vegas Valley.
Teams and parings for the 2023 NIT were released by the NIT Committee on Sunday, March 12. Thirty-two teams qualified for the NIT, both automatic qualifiers and at-large selections. In 2022, the Xavier Musketeers won the NIT Title.
Teams which had the best regular-season record in their conference but failed to win their conference tournament automatically qualified for the 2023 NIT if they were not selected for the 2023 NCAA Tournament.
The following teams were awarded at-large bids.
The following programs declined to participate in the 2023 NIT:
The 32-team bracket was announced on March 12, via the NIT Selection Show on ESPNU at 10 p.m. EST.
ESPN, Inc. had exclusive television rights to all of the NIT games. It telecast every game across ESPN, ESPN2, ESPNU, ESPN3, and ESPN+. Westwood One had exclusive radio rights to the semifinals and the championship.