A former candidate for Brooklyn ​district ​attorney ​wants to take on Manhattan DA Cy​rus​ Vance ​Jr. — ​as a write-in candidate ​– ​in next month’s election, ​for failing to press ​sex crimes ​charges against ​disgraced movie mogul Harvey Weinstein​ in 2015​.

“Cy Vance, Eric Gonzalez, Harvey Weinstein, Donald Trump, seems it’s about power and money and the drive to hold on to both,” former Brooklyn prosecutor Marc Fliedner told The Post. “Even when it’s at the expense of what is so obviously right under the law.”

A steady stream of ​actresses and other women in the ​entertainment industry have continued to accuse Weinstein of​ groping,​ sexual assault and even rape, as a recording in which Weinstein apologized to model Ambra Battilana Gutierrez for ​grabbing her breast was made public Tuesday.

The audio recording, which was made by the ​aspiring actress with the help of the NYPD, was turned over to Vance’s office shortly after the assault. Yet they declined to prosecute Weinstein, saying the audio failed to prove criminal intent.

While F​liedner did not launch the write-in campaign, which he referred to as a “social media groundswell,” he said he was all for taking on Vance.

“Have at it! I’m still invested in real reform,” he wrote on Twitter late Tuesday, respond​ing​ to a hailstorm of calls for Manhattan voters to write him in.

“If we could have prosecuted Harvey Weinstein for the conduct that occurred in 2015, we would have,” Chief Assistant DA Karen Friedman-Agnifilo said in a Tuesday statement on Vance’s behalf.

If the rape allegations are true, Weinstein could still face prosecution under the statute of limitations.

The news that Vance declined to prosecute Weinstein comes just a week after it was revealed he killed possible charges against Donald Trump Jr. and Ivanka Trump for misleading potential buyers in their Trump SoHo condo project–and then received a $31,993 political donation from President Trump’s lawyer. He later returned the money.

Fliedner’s statement also included a jab at Acting Brooklyn Attorney Eric Gonzalez, who swept September’s primaries, beating Fliedner to become the Brooklyn’s next DA. He took over the office shortly before his predecessor Ken Thompson succumbed to cancer last October.

“I never was a politician and I never will be,” Fliedner’s statement added. “I’m simply a guy who is passionate about equal justice.”

Despite living in Brooklyn, the former prosecutor could still be eligible to hold the position of Manhattan DA, according to Arthur Schwartz, an attorney versed in election law.

According to Election Law 6-122, Fliedner would have to move to Manhattan if elected, the lawyer said, and take up residence before he was sworn in. Under Public Officer’s Law, he would have to move to Manhattan by Nov. 7.

“He’s still got time,” Schwartz told The Post. “I’m sure there are plenty of people who’d offer him a free apartment.”

“Cy Vance’s established record prosecuting murder, sex crimes, financial abuse, domestic violence and a host of other crimes stands second to none,” a Vance campaign spokesman told The Post. “He has been on the national forefront fighting to end the rape kit backlog, standing up to congress and the NRA on dangerous gun laws, and championing progressive policies like closing Rikers Island and dismissing over 240,000 old warrants for minor offenses.”

“We’re confident that voters in Manhattan will continue to recognize that record on November 7.”

Vance has held the seat since 2010.