The Scandal star tweeted, "CAITLYN!!!!!!!!!! Love this. So happy for her."
The supermodel shared on Instagram and Twitter, "'As soon as the Vanity Fair cover comes out, I'm free.' HI CAITLYN, YOU ARE BEAUTIFUL"
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."
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."
The 2 Broke Girls star tweeted, "CAITLYN JENNER YOU ARE BEAUTIFUL"
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."
The former co-host of The View tweeted, "she moves me so"
The One Tree Hill beauty tweeted, "RT @VanityFair: I'm not doing this to be interesting. I'm doing this to live #CallMeCaitlyn"
The Buffy the Vampire Slayer bombshell tweeted, "#Respect. @Caitlyn_Jenner"
The model tweeted, "Caitlyn looks GORGEOUS!!!!!"
The Modern Family star tweets, "#CaitlynJenner has truly broken the Internet. What a moment."
The actress tweeted, "BEAUTIFUL!!! #callmecaitlyn"
The Real Housewives of Beverly Hills star tweets, "@Caitlyn_Jenner I'm so happy for you, and you look AMAZING! #DOYOU"
The TV anchor tweeted, "The women's empowerment space got a brave new voice in @Caitlyn_Jenner. Embrace your true self."
The supermodel tweeted, "Hi Caitlyn"
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."
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"
The E! Fashion Police co-host tweeted, "@Caitlyn_Jenner, you are GORGEOUS!! #CallMeCaitlyn"
The reality show star tweeted, "Well we should all welcome #CaitlynJenner As the path is paved for the future."
The musician tweeted, "You're finally free! #brave"
The Jersey Shore-ian tweeted, "I am obsessed!!!!! Get it!!!!! #caitlynjennar #courage #love #obsessed #stunning"
The 52-year-old beauty tweeted, "Thank you @Caitlyn_Jenner for sharing the gift of your beautiful authentic self inside and out!"
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"
The Keeping up With the Kardashians tweeted, "Caitlyn Jenner for Vanity Fair Annie Leibovitz! How beautiful! Be happy, be proud, live life YOUR way!"