James Rivera (born April 15, 1960) is an American singer, best known as the frontman for the heavy metal band Helstar.

Rivera got his start singing with power metal act Helstar, a band established in the early 1980s in Houston, Texas.

Rivera and guitarist Larry Barragan are the only remaining original members of the band after numerous lineup changes.

Over the years Rivera and Helstar have been active with their live shows across the United States as well as touring in Europe.

In January 2017, it was announced that Rivera was to join UK-based power metal band Shadowkeep and would record vocals for their fourth album.