No, Dominik is the biological son of Rey Mysterio.
Dominik was born on April 5, 1997, in San Diego, California to Rey Mysterio and his wife Angie Gutierrez.
He is the first of two children. Dominik has a sister named Aalyah Gutierrez.
Dominik is a professional wrestler who is currently signed to WWE, where he performs on the Raw brand under the ring name Dominik Mysterio.
He is a member of The Judgment Day.
Dominik started training to become a professional wrestler in 2018 with his father and an American professional wrestler Jamar Shipman, popularly known by the ring name Jay Lethal.
He then appeared on an episode of SmackDown Live on March 19, 2019, with his father, Rey Mysterio.
Dominic made his wrestling debut in August of 2020, at the SummerSlam where he lost the fight to an American wrestler Seth Rollins.
As a member of The Judgment Day, Dominik officially joined The Judgment Day after he accompanied Edge and Rey for their match against The Judgment Day at Clash at the Castle on September 3, 2022.