Mauricio Alejandro Viana Caamaño (born 14 June 1989 in São Paulo) is a Brazilian footballer nationalized Chilean that currently plays for Chilean club Santiago Wanderers as goalkeeper.
On 4 August 2013, Viana was injured towards the end of a match against Audax Italiano, but played on to the end and saved a late penalty to keep the score goalless.
After the match, he received emergency surgery for a perforated intestine.