A former Olympian claims false student complaints that she was abusive got her canned from Stony Brook University.

Janelle Atkinson-Wignall, 37, is suing the state university in Brooklyn Federal Court over her dismissal as head swimming coach of the program, which was relaunched in 2017 under her direction.

Hopes for a smooth start quickly sunk, she charges.

“It’s been a nightmare,” said the single mom, who competed in the Olympics for her native Jamaica in 2000 and 2004.

Students dropped out of the program, administrators micromanaged her work and the remaining swimmers “were not prepared for the level of commitment required of competition at the Division 1 level,” according to court papers.

The waters really got rough as athletes complained of abuse from their coach.

Stony Brook “overreacted” to the complaints, firing Atkinson-Wignall in January without a thorough investigation of the “demonstrably false” accusations, she claimed. Male coaches facing similar complaints have gotten the school’s support, she charged.

One student, Tess Stepakoff, claimed in the school newspaper Atkinson-Wignall berated them as “weak” and “not enough.”

“We were cursed at and screamed at during every practice for months. As our physical and mental health declined, we were told to get over it,” she wrote.

A second student told the web site swimswam.com Atkinson-Wignall forced students to compete while ill and ignored their injuries.

“I was reading the article, saying, ‘She sounds awful. Wait, that’s me?’” Atkinson-Wignall recalled. “Female coaches are being held to an entirely different standard than male coaches.”

The coach’s attorney, Thomas Newkirk, said he had 100 female coaches facing similar circumstances to Atkinson-Wignall.

A Stony Brook spokeswoman declined comment. A former swimmer for Atkinson-Wignall also declined comment.