Greg Piatek, 30, an accountant from Philadelphia, claims he was snubbed and eventually 86’d by workers at The Happiest Hour on West 10th Street over his conservative fashion statement, popularized by Donald Trump on the campaign trail, he told The Post.

“Anyone who supports Trump — or believes what you believe — is not welcome here! And you need to leave right now because we won’t serve you!” Piatek claims he was told as he was shown the door by a manager.

The shake-up started when Piatek and two pals, after a visit to the 9/11 Memorial, ordered drinks at the posh tavern around 6:30 p.m. on Jan. 28.

A female bartender served Piatek a $15 jalapeño margarita and his pals beers. But when he tried to order a second round, a male bartender noticed his hat — and skipped them, he said.