“We love the show for inspiring people to move to New York City and become the ‘voice of a generation,’ as Hannah would say,” Mayor Bloomberg said, quoting Dunham’s character, Hannah Horvath, a 23-year-old aspiring memoirist who believes her struggles are emblematic of her peers.

The mayor — who had a cameo in the “Sex and the City” movie that ended up on the cutting-room floor — has his SAG card ready if Dunham can work him into a script.

“They need only whistle and we’d show,” said Deputy Mayor Howard Wolfson, adding that “Girls” fever has swept City Hall.

“We’re obsessed,” Wolfson said. “It’s the big water-cooler topic of conversation Monday morning in the bullpen.”

For the high-level City Hall staffers who share their work space with Hizzoner, the week starts off with a “vigorous debate and discussion about the show,” Wolfson explained.