Marco Ruiz (born 2 December 1974) is a Paraguayan professional golfer.

He is the godson of celebrated Argentine golfer Vicente Fernández.

However indifferent performances meant that he dropped down the Challenge Tour again in 2007.

After finishing 21st on the money list for the 2008 season, missing out by one place on gaining exemption on the European Tour, Ruiz earned his card for 2009 with a 22nd-place finish at the qualifying school.

All his career victories have been in South America, highlighted by the 2007 Argentine Open.