International Violence Against Women Act of 2017 This bill establishes in the Department of State an Office of Global Women's Issues which shall be headed by an Ambassador-at-Large for Global Women's Issues. The Ambassador-at-Large shall: (1) coordinate U.S. government efforts regarding gender equality and the advancement of women and girls in foreign policy, and (2) develop or update periodically a U.S. global strategy to prevent and respond to violence against women and girls. The bill establishes in the U.S. Agency for International Development the position of Senior Coordinator for Gender Equality and Women's Empowerment who shall direct policies, programs, and funding regarding gender equality and women's empowerment. The Ambassador-at-Large and the Senior Coordinator shall: (1) identify at least four low-income and lower-middle income countries that have significant levels of violence against women and girls, and (2) develop comprehensive individual country plans to respond to such violence.