These are the lists of the most common Spanish surnames in Spain and Hispanic America. The surnames for each section are listed in numerically descending order, or from most popular to least popular.
List of the most common Surnames in Spain.
Source: [1] – Data from December 1999. (2004 data confirmation of top 25)
List of the most common surnames in Mexico: [2]
List of the most common surnames in Cuba: [4]
List of the most common surnames in the Dominican Republic:
List of the most common surnames in Puerto Rico:
List of the most common surnames in Guatemala: