Published Saturday, 15 February 2014
The 26-year-old, who was nominated for a best Actress Oscar for her role in the 2007 comedy/drama, made the revelation during an emotional speech at the Human Rights Campaign's Time To THRIVE conference.
After taking to the podium during the event, aimed at lesbian, gay, bisexual, transgender and questioning (LGBTQ) youth, Page told the audience - "I'm here today because I am gay" - prompting a huge cheer and a standing ovation from the audience.
She went on to add: "Maybe I can make a difference. To help others have an easier and more hopeful time.
"Regardless, for me, I feel a personal obligation and a social responsibility. I also do it selfishly because I'm tired of hiding and I'm tired of lying by omission.
"I suffered for years because I was scared to out. My spirit suffered, my mental health suffered and my relationships suffered."
Page's revelation prompted an outpouring of praise and support from fellow stars on Twitter, including Evan Rachel Wood, who wrote, "Congrats my friend," and Twilight's Anna Kendrick, added: "Mad mad mad mad mad mad crazy love and praise for Ellen Page today. Congrats (sic) to you, you light, talent, and beauty."
Emile Hirsch wrote: "Props to Ellen Page for helping so many people through their daily struggles by courageously leading by example and coming out on V Day! (Valentine's Day),"
Paramore star Hayley Williams revealed: "Ellen Page just made me cry on Valentine's Day. With happy tears!"
Page later took to her own Twitter account to acknowledge the kind messages, adding: "Thank you (Human Rights campaign) and everyone for all the love and support."