Master P has his first celebrity supporter in his bid to be an NBA coach ... his old pal Snoop Dogg ... who says P would be an absolutely awesome sideline boss if the league ever gave him the chance.
P revealed his desire to coach an NBA squad during a recent interview on TMZ's "Raq Rants" ... saying he's put so many guys into the league through his youth team ... he thinks it's a logical next step.
We got Snoop out in L.A. and asked him about P's hoop dreams ... and Snoop -- who was an artist on P's No Limit Records -- says coaching is actually P's DUTY ... 'cause he has knowledge to give the youth.
You hear that, Romeo? Don't put your basketball down just yet.