A teenage girl is furious that a Times Square Cookie Monster who she claims groped her has been freed by the Manhattan DA’s Office, which feared she might have ID’d the wrong one from the throng of panhandlers dressed as the blue Sesame Street character.

The 16-year-old tourist, whose name is being withheld by The Post, told police that a creep dressed as the cookie-craving muppet, grabbed her breasts Sunday after a hug.

Cops arrested Ranulfo Perez of Passaic, NJ, but Manhattan DA Cyrus Vance Jr. dropped the charges Tuesday because they say the teen lost sight of her attacker in the crowd, law-enforcement sources said.

“I am beyond upset about it. My level of anger right now isn’t just about being molested. The fact that the Manhattan DA is 100 percent OK with it is utterly disgusting,” said the teen, who was visiting from Wisconsin.

Perez, 48, was cut loose before 7 a.m. after the DA’s office decided it may have been a different hustler dressed as Cookie Monster behaving badly.

The teen had waited until Monday morning to report the crime — offering a description that included his height and a “two-tone” shoulder bag, police sources said. Cops found Perez in Times Square and arrested him.

The teen claims she saw Perez’s face when he took off his mask. “I’m absolutely positive it’s him,” she said.

Perez said Tuesday that cops got the wrong Cookie Monster. “I love people and I love children . . . It could have been anyone else, but not me,” he said.

Additional reporting by Larry Celona, Frank Rosario, Dana Sauchelli and Georgette Roberts