She might claim not to be one, but Stéphane, a 40-year-old wheelchair-bound man from the western French town of Bouguenais, certainly thinks she is.
Corinne Brosseau (screenshot BFM TV report)
Brosseau saved his life, pulling him out of the path of a train reportedly travelling at 170 kilometres an hour.
As Stéphane told the regional daily Ouest France, he was taking the level crossing in the town just as he did every day to go to work.
"I was right in the middle of the crossing when I heard the bell go and saw the barriers come down," he said.
"And for some reason - I don't know why - my wheelchair got stuck in the tracks," he continued.
"I could hear a train coming. I was terrified."
Luckily for him though, it was at that moment that Brosseau arrived to rescue him - and she only just managed.
"It was raining, the barriers had gone down and I could see there was a man in a wheelchair in the middle of the crossing clearly unable to move," she told Europe 1 radio.
"I got out of my car, rushed over to him and after a couple of attempts managed to pull him from his chair to the side of the track and out of the path of an oncoming train."
Her quick thinking and actions undoubtedly saved Stéphane's life because the train hit the wheelchair full on, leaving it fit only for the scrap yard.
(screenshot BFM TV report)
But Brosseau remained modest about the part she played in the rescue.
"I only did what anyone would have done under the circumstances," she said, admitting that her arms had ached for the rest of the day.
"It was instinctive and I'm convinced that we all have it in us to find the strength to do what's necessary," she added.
But for Stéphane there's no doubting that she's his heroine.
"She's an extraordinary woman," he told BFM TV.
"She saved my life."