Mayor Zohran Mamdani’s wife, Rama Duwaji, celebrated Palestinian terrorists in a flurry of resurfaced social media posts she made as a teenager and in her early 20s, a shocking new report said.

The Big Apple’s first lady — already under fire for her problematic past social media activity — used her Tumblr account to boost Palestinian plane hijacker Leila Khaled and other members of the Popular Front for the Liberation of Palestine, according to posts reviewed by the Washington Free Beacon.

Duwaji, 28, used the now-inactive account while she was living in the Middle East, according to the Beacon, which linked the posts to her, in part, using facial recognition technology.

The Post was unable to independently verify the account or posts.

The discovery comes a week after reports revealed that Duwaji once liked a celebratory Instagram post on the day of Hamas’ Oct. 7, 2023, attack that shared images of the murderous assault on Israel.

She also liked a social media post claiming Hamas’ rapes of Israelis during the terror rampage were a “mass hoax.”

Mamdani, a staunch critic of Israel, claimed his wife “has held no formal position on my campaign or in my City Hall” and that she shouldn’t face scrutiny over her social media activity.

City Hall did not immediately respond to The Post’s request for comment.