Jason Momoa is taking his band back to his roots … playing their first concert in his native Hawaii.

The “Aquaman” star and his rock band, ÖOF TATATÁ, jammed out Sunday night at Maoni Waikiki in Honolulu … and TMZ has video of the performance.

Jason told the crowd how meaningful it was for him to be rocking out at the famed International Marketplace in Waikiki … seeing as he’s from the area.

Folks who were there tell us Jason and his band jammed for about 2 hours … playing 10 songs and a bunch of covers from bands like Metallica and Red Hot Chili Peppers … among others.

We saw Jason bring his two kids onstage back in June during a concert in Los Angeles … and his band’s heading back to the mainland for upcoming shows in New York, Massachusetts, Georgia and Florida.