The NOH8 Campaign (NOH8 meaning "No Hate") is a charitable organization whose mission is to promote LGBTQ marriage, gender and human equality through education, advocacy, social media, and visual protest.

Photos featured subjects with duct tape over their mouths, symbolizing their voices being silenced by Prop 8 and similar legislation around the world, with "NOH8" painted on one cheek in protest.

The defeat provoked a groundswell of initiative within the LGBT community at a grassroots level, with many new political and protest organizations being formed in response.

[9] Inspired by Proposition 8, the scope of the NOH8 Campaign expanded its goals to fight discrimination and bullying generally and to spread a worldview of acceptance.

[16] Perrette supported NOH8 by providing memorabilia for auction and with awareness-raising efforts such as wearing a NOH8 dress to the People's Choice Awards in 2011 and adding a silent protest photo as the background and profile pic on her official Twitter account.