LeBron James is proof “win or lose, we still booze” holds true … ’cause the Lakers superstar had a wine night with his buddies after Los Angeles was booted from the postseason on Wednesday.

King James was spotted leaving Wally’s Beverly Hills early Thursday morning … with sources saying he was at the establishment until roughly 4 AM.

The four-time champ looked pretty cheerful despite what happened hours prior … sporting a Louis Vuitton outfit and a big grin as he headed toward his vehicle with a giant water bottle and lower back cushion in hand.

LBJ’s friends were there, too … including at least NBA super-agent and longtime pal Rich Paul and Corey Gamble, who were also at Crypto.com Arena for Game 5.

It couldn’t have been a great viewing experience … as Anthony Edwards, Rudy Gobert and the rest of the Wolves proved to be too much for the Purple and Gold.

Despite a poor shooting performance, James had 22 points, seven rebounds and six assists on the night … but it was clear the Lakers were at a major disadvantage with a much smaller lineup.

Regardless, it looks like Bron was able to get over the loss with some vino … so perhaps Lakers Nation should give it a try, too??