Marciano Saldías Barba (born April 25, 1966, in Santa Cruz de la Sierra) is a former Bolivian football defender who spent most of his career at Oriente Petrolero.
He along other important players like Erwin "Chichi" Romero, Luis Cristaldo and Celio Alves formed an exceptional team that represented Bolivia at club level in several Copa Libertadores editions of the late 1980s and early 1990s.
Saldías also had a brief spell with Paraguayan club Cerro Porteño in 1992.
The following year he joined Destroyers before returning to Oriente for a second stint in 1994.
He retired from football in 1999 while playing for Club Aurora in Copa Simón Bolívar.