The Ultimate Warrior has died ... this according to the WWE.

Warrior -- real name James Hellwig -- was a true WWE legend ... and was one of the most iconic wrestlers of all time.  He was 54-years-old.

Warrior was just inducted into the WWE Hall of Fame the night before Wrestlemania XXX this weekend ... and last night, he made his first appearance on "Monday Night Raw" in years.

Update : 9:52 PM PT -- Officials tell TMZ ... Warrior collapsed outside an Arizona hotel at 5:50 PM on April 8th ... while walking to his car with his wife. 

Warrior was transported to a nearby hospital ... where he was pronounced dead.

Read more:

http://www.tmz.com/2014/04/08/ultimate-warrior-dead-dies-wwe/#ixzz2yMai7q7Y