At Mustang Harry’s, it’s all in the family.

The longtime Midtown sports bar is celebrating its 30th anniversary — and owners Ian and Niall Conroy attribute the beloved watering hole’s longevity to their efforts to form a tight community of regulars.

“We run it like a family-run restaurant: our patrons have been friends over the years, and the ones that come in for lunch come in every week, multiple times a week,” Ian, 63, told The Post ahead of the bar’s anniversary celebration kickoff on Thursday. 6

Opened in 1995, Mustang Harry’s was inspired by the the bother’s own family’s pub in County Tipperary in Ireland — and the duo’s own children have all held various positions on staff.

“We treat everyone like they’re family,” he said. “It’s as simple as that.”

The brothers will be hol

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