Antonio Juan Marcos Villarreal (born May 12, 1976) is a Mexican politician and businessman, member of the Institutional Revolutionary Party and Coahuila's congressman.

Born in Torreón, Coahuila, Antonio Juan Marcos Villarreal is the son of the politician and congressman Salomón Juan Marcos Issa and Rocío Villarreal Asunsolo.

He was an advisor in the National Commission of Mexican Transportation and in the non-profit association "Fíjate en La Laguna".

In 2009, he served as Director of Non-Centralized Organisms and the Secretary of Regional Development of La Laguna.

In 2011, he was elected representative of the VII Local District of Coahuila, becoming a member of the LIX Legislatura of this state.