A man was stabbed several times in the back after a fight on a party boat docked off a South Street pier early Sunday morning, police said.

The victim, age 41, told police he got into a fight with another man aboard the Cornucopia Majesty off the coast of lower Manhattan at about 3 a.m.

The spat escalated, and the man stabbed the victim a number of times in the back with an unknown object, police said.

FDNY medics responded and treated the man on the boat before he was transported to Bellevue Hospital with non-life threatening injuries, authorities said.

The suspect was wearing white shorts with pink stripes and a light-blue baseball cap, police said. He has not been arrested.

The Cornucopia Majesty is billed as a party boat that hosts weddings, birthdays and other celebrations, on its website.

“The yacht is equipped with multiple dance floors, bars, restrooms, and even a VIP room!” according to a description of the boat online. “Enjoy a meal in one of the dining rooms onboard and enjoy a luxurious night out on this great yacht.”

Events like an “Eyes Wide Shut midnight dance party cruise” are also advertised on the site.