The 16 Days of Activism against Gender-Based Violence is an annual international campaign that runs from 25 November, the International Day for the Elimination of Violence against Women, and runs until 10 December, Human Rights Day. 

The campaign was started by activists at the inauguration of the Women’s Global Leadership Institute in 1991. It continues to be coordinated each year by the Center for Women’s Global Leadership. It is used as an organizing strategy by individuals and organizations worldwide to call for preventing and eliminating violence against women and girls.