The diplomat’s wife who allegedly struck and killed a British teen may not have been eligible for diplomatic immunity, a lawyer for the victim’s family claimed Tuesday.

Attorney Mark Stephens told the Guardian that Jonathan Sacoolas was not named on the official diplomatic list, meaning he and his wife, Anne Sacoolas, may not have been covered by the protection.

Stephens said this was confirmed by the UK’s Foreign Office, which handles Britain’s affairs around the globe.

But a UK government official told The Post that Sacoolas, who worked out of a Royal Air Force base near the village of Croughton, wasn’t on the list because it only covers London-based diplomats — but he still has full protection under the Vienna Convention

“US staff and their dependents who are based at RAF Croughton are appointed under the Vienna Convention on Diplomatic Relations, which means they are extended diplomatic immunity,” said the official.

The London Diplomatic List only contains the names and designations of persons based at missions in London,” the official added. “There’s a specific arrangement in place for US staff and their dependents who are based at RAF Croughton.”

Stephens is representing the family of Harry Dunn, the 19-year-old motorcyclist who was fatally struck in Northhamptonshire in August — allegedly by Anne Sacoolas as she drove on the wrong side of the road.

Sacoolas, 42, initially cooperated with local authorities’ investigation, but eventually invoked diplomatic immunity and left the UK with her husband and their children, reportedly at the urging of lawyers and US Embassy officials..

The US Department of State responded to requests for clarification on Sacoolas’s immunity with a statement they’d previously issued on the case, but did not directly address Stephens’s claim.

UK Prime Minister Boris Johnson on Monday urged Sacoolas to return to Britain and face justice — and vowed to broach the topic with President Trump if she refused.

Meanwhile, Dunn’s “broken” mom, Charlotte Charles, made her own emotional appeal to Sacoolas, who reportedly had been fined for her driving in the past.

“She’s got to be suffering as well. She’s a mom,” Charles previously told Sky News. “Without knowing who this person is properly, we can’t … start our grieving process.”

Additional reporting by Nikki Schwab