Thanks to this cop, her dad can breathe easy.

The heroic detective who saved a choking baby on a Bronx highway recalled the pulse-pounding moment the tot coughed and gasped for air — saying he’s now thrilled that “she’s gonna be here for Christmas.”

Det. First Grade Michael Greaney, 40 — a dad of two toddlers — was heading to work at 8:45 a.m. Wednesday when he spotted a BMW speeding down the shoulder of the Bronx River Parkway, he told The Post Friday.

“I followed the vehicle, turned my lights on,” he said. “[The dad] rolled down his window and yelled, ‘My baby’s choking!’”

Det. First Grade Michael Greaney saves a choking baby on the side the Bronx River Parkway. TikTok/simplysandra__

The quick-thinking cop grabbed the 8-month-old girl out of her car seat, flipped her over and h

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