The 2023 Indianapolis 8 Hours (also known as the Indianapolis 8 Hour Presented by AWS for sponsorship reasons) was the fourth running of the Indianapolis 8 Hour.

The race was the fourth round of the 2023 Intercontinental GT Challenge and the seventh and final round 2023 GT World Challenge America championships.

The 2023 edition was open only to cars within GT3 regulations.

[1] Supporting the race weekend were the Pirelli GT4 America Series, the TC America Series, and the GT America Series.

[2] Class winners denoted with bold and ‡.