Silvio Román Guerra Burbano (born September 18, 1968 in San Gabriel, Carchi) is an Ecuadorian runner.

A member of Concentración Deportiva de Pichincha he represented Ecuador at the 1996 Summer Olympics in Atlanta, United States, the 2000 Summer Olympics in Sydney, Australia and the 2004 Summer Olympics in Athens, Greece.

He also qualified for the 2008 Summer Olympics in Beijing, China.

He has held the Ecuadorian marathon record since 1997, 2:09:49.

Guerra has won numerous medals at the South American Cross Country Championships: starting with a silver medal in 1993, gold the following year, a second silver in 2000, and finally a bronze medal in 2005.