2023 USL League One season

Twelve teams participated in the 2023 season.

[1] Lexington SC entered as an expansion team and One Knoxville SC joined from USL League Two.

[2][3][4] FC Tucson left to rejoin USL League Two.

[5] Tormenta FC are the defending champions, having defeated Chattanooga Red Wolves in the 2022 final.

The 2023 USL League One Playoffs (branded as the 2023 USL League One Playoffs presented by Hisense USA for sponsorship reasons) will be the post-season championship of the USL League One season.