The feminist sex wars, also known as the lesbian sex wars, or simply the sex wars or porn wars, are terms used to refer to collective debates amongst feminists regarding a number of issues broadly relating to sexuality and sexual activity. Differences of opinion on matters of sexuality deeply polarized the feminist movement, particularly leading feminist thinkers, in the late 1970s and early 1980s and continue to influence debate amongst feminists to this day. The sides were characterized by anti-porn feminist and sex-positive feminist groups with disagreements regarding sexuality, including pornography, erotica, prostitution, lesbian sexual practices, the role of trans women in the lesbian community, sadomasochism and other sexual issues. The feminist movement was deeply divided as a result of these debates.
The two sides became labelled anti-pornography feminists and sex-positive feminists.
In 1976 Andrea Dworkin organized demonstrations against the film Snuff in New York, but attempts to start an organization to continue the feminist anti-pornography campaign failed. Efforts were more successful in Los Angeles, where Women Against Violence Against Women was founded in response to Snuff in 1976; they campaigned against the Rolling Stones' 1976 album Black and Blue. The U.S. anti-pornography movement gained ground with the founding of Women Against Violence in Pornography and Media in 1977 in San Francisco, following a 1976 conference on violence against women held by local women's centers. Early members included Susan Griffin, Kathleen Barry, and Laura Lederer. WAVPM organised the first national conference on pornography in San Francisco in 1978 which included the first Take Back the Night march. The conference led to anti-pornography feminists organizing in New York in 1979 under the banner of Women Against Pornography, and to similar organizations and efforts being created across the United States. In 1983, Page Mellish, a one-time member of WAVPM and of WAP, founded Feminists Fighting Pornography to focus on political activism seeking legal changes to limit the porn industry. Andrea Dworkin and Catharine MacKinnon wanted civil laws restricting pornography and to this end drafted the Antipornography Civil Rights Ordinance.