Warren Thomas Farrell is an American political scientist, activist, and author of seven books on men's and women's issues. Farrell initially came to prominence in the 1970s as a supporter of second wave feminism but has since become a leading figure of the men's rights movement. He served on the New York City Board of the National Organization for Women (NOW). Farrell advocates for "a gender liberation movement", with "both sexes walking a mile in each other's moccasins".

The men's rights movement (MRM) is a branch of the men's movement. The MRM in particular consists of a variety of groups and individuals who focus on general social issues and specific government services which they say adversely impact, or in some cases, structurally discriminate against, men and boys. Common topics discussed within the men's rights movement include family law, reproduction, suicides, domestic violence against men, false accusations of rape, circumcision, education, conscription, social safety nets, and health policies. The men's rights movement branched off from the men's liberation movement in the early 1970s, with both groups comprising a part of the larger men's movement.