Helen Mack Chang

Helen Mack Chang (b. 19 January 1952) is a Guatemalan businesswoman and human rights activist. She became an outspoken advocate for human rights after her sister, anthropologist Myrna Mack Chang, was assassinated by the Guatemalan military on September 11, 1990.

In 1993 Helen Mack founded and became the executive director of the Myrna Mack Foundation in Guatemala City. In addition to pursuing justice for Myrna Mack through the national and international courts, the Foundation engages in a broad array of other activities and programs to promote human rights in Guatemala.