A federal appeals court yesterday upheld “ladies’ night” promotions at the Copacabana and other Manhattan hot spots.

The Second Circuit Court of Appeals in Manhattan rejected claims by self-described “anti-feminist lawyer” Roy Den Hollander that charging men more for admission than women violates their rights under the constitution’s Equal Protection clause.

A three-judge panel unanimously ruled that Den Hollander failed to prove that the popular nightclubs — also including the China Club, Lotus and Sol — are subject to a law barring discrimination by anyone acting under government authority.