His father is one of the most famous pot-smokers on the planet ... but Snoop Dogg's football star son says he doesn't touch the sticky icky ... because his body is a smoke-free temple.
Cordell Broadus -- one of the top high school wide receivers in the country -- appeared on ESPN's new documentary series "Snoop & Son: A Dad's Dream" ... and addressed the green elephant in the room.
"I don't mess with that at all," Cordell said ... "If you're an athlete, you shouldn't cheat your body."
As for Snoop, the Doggfather says he goes out of his way to keep his weed habit away from Cordell ... saying, "I don't want him no where near it."
Cordell has yet to announce where he's heading to college next year -- but you gotta imagine this topic was on the mind of every major coach recruiting him.