Super Bowl -- WEED WARS ... Sherman OG vs. Agent Orange Kush

Good news for Seahawks and Broncos fans planning on lighting up a super bowl of ganja this Sunday ... 'cause TMZ Sports has learned, pot stores are now selling CUSTOMIZED WEED for the big game.

Medical marijuana dispensaries in Denver and Seattle -- the only two cities in the country where you can toke up recreationally -- are actually selling Super Bowl themed pot.

You can smoke "Richard Sherman OG" from Rain City Medical in Seattle -- which will also be passing out Seahawks colored weed-infused popcorn to munch on during the game.

Meanwhile, Kind Meds dispensary in Denver is featuring a "Big Bad Broncos" strain ... "Agent Orange Kush" ... and even "Bruised Seahawks" -- so Broncos fans can literally smoke the opposition.

And for the stoners who aren't into Bruno Mars ... both stores are offering half-price specials at half-time -- in case anyone needs to stock up during the game.