These young people are kicking off their Sunday shoes — and stomping on city bureaucrats’ 90-year-old ban on dancing in bars.

Members of the newly created Dance Liberation Network are battling, Footloose-style, for their right to cut loose — by rescinding the city law that bans busting a move in an establishment that doesn’t have a cabaret license.

“New Yorkers are never going to stop dancing,” declared Adam Snead, a group organizer who helped draft a petition against the law that’s racked up nearly 3,000 signatures in two weeks. “Most people agree this law is ridiculous and needs to go.”

The law was enacted in 1926 during Prohibition, and outlaws dancing in groups of three or more in “any room, place or space in the city” where there is “musical entertainment, singing, dancing or other forms of amusement.”

Snead, 33, a Bushwick music-venue manager, and fellow activists say their movement was triggered by the tragic fire that killed 36 people in a California artist’s warehouse during a dance party last December. They believe the cabaret law stifles small independent dance and music venues, forcing them to go underground and use dangerous spaces for gatherings.

“The law isn’t about keeping people safe,” said Frankie Hutchinson, 29, a DNL organizer and founder of an all-female music collective. “It’s about diminishing people’s rights.”

Activists say the city uses the law as a bludgeon against disruptive clubs.

“It functions as a tool for the NYPD. If there’s a space they want to go after, they can use the cabaret law and get them shut down,” said Olympia Kazi, 41, a member of the NYC Artist Coalition, which is also fighting for the law’s removal.

New Yorkers are never going to stop dancing. Most people agree this law is ridiculous and needs to go.

If a bar or club gets caught violating the no-dancing mandate three times, it can be shut down.

Only 93 of the city’s 25,100 licensed bars, restaurants and clubs actually hold a cabaret license, according to the city Department of Consumer Affairs.

Cabaret-license violations happen “somewhat frequently,” said State Liquor Authority spokesman William Crowley, who estimated 40 to 60 venues are slapped annually.

Obtaining a cabaret license is both expensive and arduous, according to license holders. Costs can run into the tens of thousands to meet mandates for insurance and surveillance cameras, as well providing proof that the venue meets city fire and building codes.

“I believe in enforcement of safety codes, but the cabaret license is completely antiquated,” former Fire Marshal John Knox said. “The original reason for it was to keep organized crime out of entertainment venues.”

But some community leaders see the value of a well-enforced cabaret law, because it ensures that dance clubs do have fire-safety and noise-abatement measures in place, and allows the authorities to keep tabs on nuisance gin mills.

“If a venue is coming to us requesting a cabaret license, there’s an expectation they will have a security plan, traffic analysis, and a plan to reduce noise,” said Brooklyn Community Board 1 member Rob Solano. “You’ll have people in the street that normally would not be there and we should know how the venue’s going to handle them.”

City Councilmen Rafael Espinal and Antonio Reynoso, both Brooklyn Democrats, are in favor of letting people to bust a move and say they are planning legislation to repeal the cabaret law.

“From the cobblestoned streets of the Meatpacking District to the warehouses of Bushwick, NYC’s nightlife scene should be accessible, fun, and safe for everyone,” Espinal said in a statement. “It is time NYC … brings our regulations into the 21st century.”

Kevin Bacon did not return a request for comment.