Looking to party like an NBA star? Good luck.

The confetti had barely settled after Thursday’s Knicks championship parade when the celebration moved behind some of Manhattan’s most exclusive doors.

Fresh off their historic title run, the Knicks celebrated at a mix of invitation-only supper clubs, celebrity-filled private social clubs and restaurants so exclusive that even scoring a reservation can feel like winning a championship.

From members-only hideaways with five-figure initiation fees to a Midtown steakhouse where a table can require weeks of planning — and a little luck — these are the elite haunts where the city’s newest champions celebrated.

Here’s what it’ll actually take for mere mortals to score a seat.

Chez Margaux: Where the champagne flowed after the parade

Just hours after more than 1 million fans packed Lower Manhattan for the championship parade, the Knicks MVPs traded floats for fine dining at Chez Margaux, the ultra-exclusive members’ club tucked away in the Meatpacking District.

The new holders of the Keys to the City — Josh Hart, Karl-Anthony Towns, OG Anunoby, Miles McBride and Landry Shamet — celebrated in a curtained-off VIP section at 403 W 13th St.

Meanwhile, DJ Mark Ronson spun records and Chef Jean-Georges Vongerichten’s kitchen kept the caviar and cocktails flowing.

The menu reportedly featured crispy potato croquettes topped with caviar, spicy lobster lumache, black truffle pizza and a Knicks-themed Devil’s Food cake.

For those looking to party a la Knicks-style — you better start saving.

Annual memberships at the bougie club start at $3,000 for those under 30 and $4,000 for everyone else, plus initiation fees of up to $3,000.

Big spenders can spring for a $25,000 Executive Membership, which comes with VIP perks like priority reservations, extra guest passes and the ability to host private events.

Flyfish Club: From NFT experiment to NBA victory party

Before the citywide parade, another celebration unfolded at Flyfish Club on the Lower East Side, as reported by The Post.

On June 14, the private dining club — originally launched as the world’s first NFT restaurant, meaning a unique digital token is required to secure access, before opening traditional memberships — hosted much of the Knicks roster.

It was a champagne-fueled championship bash featuring a performance by A Boogie Wit Da Hoodie.

Jalen Brunson, Karl-Anthony Towns, Josh Hart, Mikal Bridges and nearly the entire championship squad celebrated at 141 E Houston St. alongside family, friends and Yankees star Jazz Chisholm Jr.

Can non-NBA superstars get into FlyFish Club?

Sort of. Membership is currently full, as per the club’s website, so your only option is to join the waitlist.

If your application is accepted, junior memberships start at a $700 initiation fee plus $2,300 annually.

Standard memberships cost $2,500 to join and $3,500 every year after that.

Zero Bond: The celebrity clubhouse

If you didn’t spot the Knicks at Zero Bond, you probably spotted someone almost as famous.

According to TMZ, Taylor Swift, Hailey Bieber, Tate McRae, Sombr and the Haim sisters all descended on the NoHo members’ club at 0 Bond St. after Game 4, turning the already-exclusive hotspot into one of the most star-studded after-parties in town.

Founded by Scott Sartiano, Zero Bond has become one of New York’s most coveted networking clubs, where photography is banned and privacy is prized.

If you’re considering stepping foot in Zero Bond, you can only do so if the strict membership committee says yes.

Prospective members must apply and survive committee review before paying annual dues that start around $3,850 plus initiation fees.

Lifetime memberships? Invitation only.

Polo Bar: The toughest reservation in town

Not every Knicks celebration happened behind a membership card.

Head coach Mike Brown received a standing ovation at Ralph Lauren’s Polo Bar this week, with diners going viral as they serenaded him with his now iconic chant, “Who Let the Dogs Out?” as he entered the Midtown institution.

The restaurant may not technically be private — but it can feel that way.

Trying to score a table at the joint located at 1 E 55th St.? Good luck. Reservations open exactly 30 days ahead and can only be made by phone.

Veteran diners recommend calling the moment reservations open, settling in for a long hold and hoping someone else cancels.

No reservation? Don’t expect to grab a cocktail at the bar. You won’t make it past the front door.

Overall, the Knicks may have brought home the Larry O’Brien Trophy, but they also reminded New Yorkers of another truth: sometimes the hardest thing to win in this city isn’t a championship. It’s a reservation.