Bárbara Rocío Comba (born 14 July 1987) is an Argentine discus thrower.

As a teenager she competed in the shot put, and finished tenth at the 2003 World Youth Championships and eighth at the 2006 World Junior Championships.

Her personal best throw is 16.59 metres, achieved in July 2006 in São Caetano do Sul.

[5] In the discus throw she finished fifth at the 2006 World Junior Championships.

She also competed at the 2008, 2012 and 2016 Olympic Games and the 2009 and 2015 World Championships without reaching the final.