A 91-year-old US Marine veteran jumped to his death from a Manhattan building overlooking Central Park early Wednesday — possibly after realizing he “couldn’t save” his ailing wife, authorities and his daughter said.

Harold Tekel plunged from the 17th floor of the 35-story tower at 200 Central Park South around 7 a.m., authorities said.

One of his daughters, Marci Guillerme, said her dad may have chosen to end his life after coming to terms with the medical condition of her mom, Rochelle, 88, who is suffering from late-stage heart failure. 

“I think it came to a point where he figured out he couldn’t save my mom and he had a problem with his eyes and he was losing his eyesight,” Guillerme told The Post.

“I never expected this from him. I don’t think anyone expected him… maybe take a handful of pills with my mom… she never thought he’d go first,” the heartbroken woman said. 

“He just realized his love couldn’t save her anymore,” she added. “He’s an extremely well-loved member of our family.”

The couple — described as “inseparable” — had celebrated their 71st anniversary in June.

Tekel had apparently attempted “something similar” a couple weeks ago, cops said.

Though shocked by his apparent suicide, Guillerme said the family had noticed signs of his depression.

Tekel served in the Marines as a staff sergeant at Camp Lejeune in North Carolina, his daughter said.

“My father was the proudest marine you’d ever meet. Every time he’d call someone he’d say ‘I’m a Marine don’t I get anything?'” Guillerme recalled.

His final wish is to be buried at Arlington National Cemetery.

Tekel leaves behind three daughters, four grandchildren and a great-grandchild.

“He was so proud of all of his children and grandchild and we don’t understand it,” Guillerme said.

“We are in a state of disbelief.”

The white-glove cooperative building, located one block west of Columbus Circle, has 309 units and was built in 1963.

Police said the nonagenarian died after he landed on the sidewalk of the Seventh Avenue side of the building, and that no criminality was suspected.

Just hours earlier, another man jumped to his death from the sixth floor of a nearby building, according to police.

The 66-year-old, who was not publicly identified, leaped from 160 West End Avenue shortly after 4:30 a.m. and died at St. Luke’s Hospital, according to police.

If you are struggling with suicidal thoughts or are experiencing a mental health crisis and live in New York City, you can call 1-888-NYC-WELL for free and confidential crisis counseling. If you live outside the five boroughs, you can dial the 24/7 National Suicide Prevention hotline at 988 or go to SuicidePreventionLifeline.org.

Additional reporting by Katie Donlevy