Orlando Brown is Wanted in Las Vegas

Orlando Brown needs Siri, Google, Alexa ... or something to remind him to turn his ass in to Las Vegas cops, since he's already forgotten to get said ass to court.

A clerk with the Las Vegas Justice Court tells TMZ ... Orlando was supposed to appear in court Thursday for his drug possession case, but never showed up, so a judge issued an arrest warrant.

TMZ broke the story ... Orlando was arrested and booked for felony narcotics possession along with misdemeanor charges of drug paraphernalia and resisting arrest.

Seems Orlando hasn't learned his lesson. The last time there was a warrant out for his arrest -- just 4 months ago -- bounty hunters stormed into a Vegas house and dragged him out at gunpoint ... in his underwear.