What does Rosario mean?
Rosario \r(o)-sa-rio\ as a boys' name (also used as girls' name Rosario) is pronounced roe-ZAR-ee-oh. It is of Latin origin, and the meaning of Rosario is "rosary". From Rosarius. In Roman Catholic countries, this name has traditionally been given to those born on the first Sunday in October, the Feast of "Our Lady of the Rosary". This name is feminine in Spanish and masculine in Italian.
Rosario is a somewhat popular first name for men (#953 out of 1220, Top 78%) and an even more popular last name for both adults and children (#865 out of 150436, Top 1%). (2000 U.S. Census)
Displayed below is the baby name popularity of Rosario for boys. Rosario was first listed in 1900-1909 and reached its peak position of #561 in the U.S. during 1920-1929, but is not ranked at the moment. (Top 1000 Baby Names Records, 2014)
A suggested similar baby name is Rogerio. This name tends to be less commonly used than Rosario.