Rodrigo Rettig Vargas (born 6 December 1982) is a Chilean attorney, scholar, politician and pundit dedicated to criminal law. He became known for representing people defrauded by Alberto Chang.
His professional career has been characterized by high-profile litigation on behalf of members of civil society affected by the negligence of private and public institutions. This has earned him media appearances and the status of columnist in online newspapers.
A follower of social-liberal ideology, he has explored the development of these ideas through scholar articles. He has been quoted by progressive foreign media outlets such as Jacobin. He has also lectured on law at universities, colleges, and other venues. 
Rettig is a member of the Chilean Liberal Party, and previously was a member of the Citizens party, from which he was Secretary General.
Early life.
Rettig was born in the capital city Santiago into a family with a reformist political tradition.
He completed his Bachelor of laws (LL.B) at the Finis Terrae University.
Biography.
He began his public career as municipal administrator of the municipality of Futrono from 2011 to 2012. Subsequently, from 2013 to 2016, he served as National Head of the "Denuncia Seguro" Program linked to the Chilean Undersecretariat for Crime Prevention. Since 2017, he has worked as a litigator.
His first high-profile case was the "Chang case", where he was the plaintiff in the fraud lawsuit against Alberto Chang. He represented more than sixty victims, including José Miguel Viñuela and Josefina Montané. In this context, Rettig also sued Santander and de Chile banks for failing to alert him about suspicious transactions related to Chang's checking accounts.
Another well-known case he litigated was the "Primus" case. He has also participated in legal actions to ensure that the Chilean State guarantees material access to people without the resources to pay for medical operations.
In politics, he has been a commentator, coordinator, and twice a candidate for the two failed constitutional processes, without being elected.