Guillermo Eugenio Mario Snopek (born 11 January 1975) is an Argentine politician of the Justicialist Party.

Snopek was born on 11 January 1975 in San Salvador de Jujuy into a prominent political family.

In 2015, Snopek ran for a seat in the National Chamber of Deputies as the first candidate in the Front for Victory list, followed by Carolina Moisés.

[3] Two years later, in the 2017 legislative election, Snopek ran for National Senator for Jujuy, as the first candidate in the Justicialist Front list.

[4] During his term as senator, Snopek presided the parliamentary commission on constitutional affairs, and formed part of the commissions on justice and criminal affairs, general legislation, rights and guarantees, mining and energy, infrastructure and housing, systems and mass media, environment and sustainable development, magistrate trials, and the permanent bicameral commission on legislative procedure.