"WWE is shocked and deeply saddened to learn of the passing of one of the most iconic WWE Superstars ever, The Ultimate Warrior," a statement reads.
Warrior -- who was born James Brian Hellwig ? began his career in 1987. He defeated Hulk Hogan at WrestleMania VI to become WWE Champion.
The wrestler is survived by his wife Dana and two daughters.
The news was met with sadness and shock online.
ABC News contributed to this report.