A Craigslist prostitute believed to be one of 10 victims of Long Island’s elusive Gilgo Beach serial killer was likely “strangled” to death, a renowned forensic pathologist revealed Friday.

“There is insufficient information to determine a definite cause of death, but the autopsy findings are consistent with homicidal strangulation,” New York City’s former chief medical examiner, Michael Baden, wrote in his analysis of Shannon Gilbert’s demise.

The findings fly in the face of an initial autopsy performed by the Suffolk County Medical Examiner’s Office, which listed Gilbert’s cause of death as “undetermined.”

In his report, Baden noted that while most of Gilbert’s skeletal remains “appeared normal” with no trauma, her hyoid bone showed signs of “roughness at the margins” and her larynx was missing.

“These structures, the larynx and hyoid bone, are often fractured during homicidal strangulation,” Baden said in his report.

Gilbert’s family attorney, John Ray, elaborated, saying that the two horns at either end of her ­U-shaped hyoid bone had been “broken off,” which would indicate strangulation.

Baden was hired by Gilbert’s family to perform an independent autopsy on her skeletal remains, which were discovered in December 2011 along a 15-mile stretch on Long Island’s south shore around Gilgo Beach.

About a year earlier, police, accompanied by bloodhounds, stumbled across the first of 10 corpses — nearly all prostitutes and one infant girl — wrapped in burlap sacks in the same marshy area. Several of the hookers had been strangled.

Gilbert, 23, was last seen alive in the wee hours of May 1, 2010, after she visited a client in Oak Beach, LI — about a mile from where her remains were later found.

She called a 911 operator while she was frantically running away to ­report that someone was trying to kill her.

The investigation languished for years with the local authorities, prompting the FBI to announce recently that it was joining the probe. Police believe that one, or possibly two killers, were responsible for the murders — and ­rumors abound that a cop might be the culprit.