A beautiful NYU student was found dead from an apparent suicide Tuesday in a swanky Bryant Park Hotel, sources said.

Rowen Altenburger, 18, of Short Hills, NJ, was discovered about 12:45 p.m. after her mother used a smartphone app to track her down to the hotel on West 40th Street, law enforcement sources said.

The troubled teen was found with a plastic bag over her head, a source said.

A suicide note was sealed and addressed to her mother, but an apparent draft of the note was also in the room and said the young woman was sorry, a source said.

“It can be easy to lose yourself. Not to mention lots of time,” Altenburger wrote on her website.

Altenburger posted images of her sometimes-dark paintings— titled “Live fast and Die Young” and “I’m not Real” — on the art-sharing website Cosmofunnel.com.

One of her paintings features a female’s face in covered in what appears to be blood; another shows a skeleton.

Altenburger’s mother used the GPS app Tuesday morning, which tracked her down to Bryant Park, a source said.

The mother then called different locations near the park and eventually phoned the Bryant Park Hotel where staff said that her daughter was staying.

On Tuesday afternoon, a police vehicle pulled up to the hotel with three family members, who tearfully declined comment.

NYU has been plagued by suicides in recent years.

The school set up a “suicide-prevention” wall in its library atrium — the site of at least three suicides in recent years — in 2012.

An NYU spokesman didn’t return calls by press time.