Kerry Washington
The Scandal star tweeted, "CAITLYN!!!!!!!!!! Love this. So happy for her."
Gigi Hadid
The supermodel shared on Instagram and Twitter, "'As soon as the Vanity Fair cover comes out, I'm free.' HI CAITLYN, YOU ARE BEAUTIFUL"
Camille Grammer
The Real Housewives of Beverly Hills star tweeted, "Good for Bruce! He is free. Now if others could free themselves. I have seen this before."
Ellen Page
Adding a heart emoji, the actress retweeted Jenner's tweet, "I'm so happy after such a long struggle to be living my true self. Welcome to the world Caitlyn. Can't wait for you to get to know her/me."
Kat Dennings
The 2 Broke Girls star tweeted, "CAITLYN JENNER YOU ARE BEAUTIFUL"
Meghan McCain
The author and daughter of U.S. Senator John McCain tweeted, "Caitlyn Jennier is unbelievably brave and inspiring - historic moment for the LGBT community. Beautiful @VanityFair cover."
Rosie O'Donnell
The former co-host of The View tweeted, "she moves me so"
Sophia Bush
The One Tree Hill beauty tweeted, "RT @VanityFair: I'm not doing this to be interesting. I'm doing this to live #CallMeCaitlyn"
Eliza Dushku
The Buffy the Vampire Slayer bombshell tweeted, "#Respect. @Caitlyn_Jenner"
Lily Aldridge
The model tweeted, "Caitlyn looks GORGEOUS!!!!!"
Jesse Tyler Ferguson
The Modern Family star tweets, "#CaitlynJenner has truly broken the Internet. What a moment."
Emmy Rossum
The actress tweeted, "BEAUTIFUL!!! #callmecaitlyn"
Brandi Glanville
The Real Housewives of Beverly Hills star tweets, "@Caitlyn_Jenner I'm so happy for you, and you look AMAZING! #DOYOU"
Maria Shriver
The TV anchor tweeted, "The women's empowerment space got a brave new voice in @Caitlyn_Jenner. Embrace your true self."
Tyra Banks
The supermodel tweeted, "Hi Caitlyn"
Lady Gaga
The "Born this Way" singer tweeted, "Caitlyn, @Caitlyn_Jenner thanku for being a part of all of our lives & using your platform to change people's minds."
John Stamos
Full House's Uncle Jesse tweeted, "Catlyn Jenner I'll go wine tasting with you any time you want! Congrats @Caitlyn_jenner I'm very happy for you!! #Brave"
Brad Goreski
The E! Fashion Police co-host tweeted, "@Caitlyn_Jenner, you are GORGEOUS!! #CallMeCaitlyn"
Lisa Vanderpump
The reality show star tweeted, "Well we should all welcome #CaitlynJenner As the path is paved for the future."
Leah Jenner
The musician tweeted, "You're finally free! #brave"
JWoww
The Jersey Shore-ian tweeted, "I am obsessed!!!!! Get it!!!!! #caitlynjennar #courage #love #obsessed #stunning"
Demi Moore
The 52-year-old beauty tweeted, "Thank you @Caitlyn_Jenner for sharing the gift of your beautiful authentic self inside and out!"
Monica Lewinsky
The motivational speaker tweeted, "insisting on a different ending to her story is EXACTLY what @Caitlyn_Jenner is doing. she is helping so many. BRAVA! @VanityFair"
Kim Kardashian
The Keeping up With the Kardashians tweeted, "Caitlyn Jenner for Vanity Fair Annie Leibovitz! How beautiful! Be happy, be proud, live life YOUR way!"