A rogue calf went on the lam in Brooklyn Tuesday — breaking free from its captors and causing a rodeo-style ruckus in the heart of stroller mom turf.

The cow escaped from a slaughterhouse on Fourth Avenue near 16th Street in Park Slope and hoofed it to the Prospect Expressway and then south towards Prospect Park, police sources said.

The NYPD’s Emergency Services Unit cops shot the bull with an air-powered tranquilizer pistol and corralled it into a horse trailer near the park’s parade grounds at around 1:30 p.m.

As cops tried to wrangle the bold bovine, it slammed into a soccer goal and knocked over a female police officer, according to witnesses.

“He took me down when he crashed into the soccer net,” the cop said, adding she wasn’t injured. “Just my pride [was hurt]!”

A crowd of 200 people gathered to watch the barnyard drama unfold. Many of them gasped when the bull was struck with tranquilizers.

A live video showed the creature standing in a soccer field, looking confused — as at least six officials closed in on him and four helicopters hovered overhead.

“The poor thing, he don’t know what to do — and neither do the cops! We need a cowboy,” said neighbor Yvonne Felix, 42.

The bull will be taken to Skylands Animal Sanctuary in Wantage, NJ, an official said.

The NYPD’s Emergency Services Unit cop had the bull cornered — with tranquilizer guns drawn —near Caton Avenue and Stratford Road at around 1 p.m. Tuesday. Animal Care Center workers were also on site.

To catch the creature, cops blocked off a section of Caton Avenue, snarling traffic and irking drivers.

A wild photo shot from above shows the bold bovine kicking up dust on a street near Prospect Park, according to ABC7NY, which tweeted the image.

Another photo shows the creature bolting under an overpass near several parked cars, according to a tweet from Boro Park News.

On Tuesday afternoon, the bull had earned its own Twitter page, which declared, “NYPD MOVING IN…Let’s MOOOVE!”