Marcos is a moderately popular boys' name in United States, ranking #280 in 2009 with 1,212 recorded births. This places Marcos in the top 2% of ranked US boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2001 with 1,415 births ranking #240. Since 1996, the popularity has decreased by 10.2%. In 2009, approximately 1 in every 1,636 boys born was named Marcos. STABLE Recent data shows the name is currently stable.