The actress and activist has made the huge €1.13m contribution to help fund the Justice and Equality Fund, which aims to provide assistance to sexual harassment and abuse victims.
"We have created the Justice and Equality Fund, to create the far-reaching personal, social, legal and policy changes that will ensure everyone can feel safe at work, at play and at home," they state on their Go Fund page.
The new movement has now been endorsed by 200 movers and shakers in the acting world.
"Together we can end the culture of harassment, abuse and impunity," they also state on their page.
In an open-letter published in The Observer newspaper, the new movement declared: "In the very near past, we lived in a world where sexual harassment was an uncomfortable joke; an unavoidable awkward part of being a girl or a woman.
"It was certainly not to be discussed, let alone addressed. In 2018, we seem to have woken up in a world ripe for change.
"If we truly embrace this moment, a line in the sand will turn to stone."
#100years ago in the UK, certain women became eligible to vote, & women were given the right to stand for Parliament. Amidst the celebrations, let's not forget those women that were excluded from voting for another ten years, & the women still denied a political voice even today.— Emma Watson (@EmmaWatson) February 6, 2018