The 24 Hours of Portimão is both a sports car and touring car automobile endurance race held annually at the Algarve International Circuit.

[1][2] The race is currently part of 24H GT Series and Touring Car Endurance Series.

As with all races in the 24H Series, promoted by Dutch promoter Creventic, they are open to both professional and semi-professional teams.

[3] Since 2018 the race became also part of Touring Car Endurance Series, and in that same year was part of 2018 24H Proto Series.

The race was not included into the 2023 24H GT Series calendar, however in September 2023, it was announced that the race will return in 2024.