Mark Coleman is retired, but he's not done fighting ... the UFC legend was airlifted to a local hospital after sustaining injuries while rescuing his mom and dad from a raging house fire.

59-year-old Coleman, one of the MMA promotion's earliest stars who beat legends like Stephan Bonnar, Don Frye, and Dan Severn, played hero Tuesday morning in Toledo, OH, when his parents and dog Hammer were trapped in an inferno.

Mark was able to get his mother and father out of the burning house and to a safe area before returning for his pup. Tragically, the dog didn't make it, according to the local fire department chief.

As tragic as it was, it could've been much worse ... the chief told reporters the roof of the structure collapsed shortly after firefighters entered the premises.

Although mom, dad, and Mark got out, the UFC Hall of Famer was in such rough shape that he had to be airlifted to a hospital, according to MC's good buddy, Wes Sims.

Sims added that Coleman was intubated and sedated, but provided no further update on his friend's condition.

The cause of the fire isn't yet known.

It's clear Mark has a close relationship with his mom, Connie. On Mother's Day in 2022, he posted a photo with her, along with a sweet caption.

"You are my favorite thank you for everything u are my inspiration. I love u so much."

Wes ended his health update like this ... "I swear to GOD-he’s one of the toughest individual ever created, been thru so much a Movie at this point could not give his life work Justice! Please