The Casiano surname in San German, Puerto Rico begins in the year 1675 with a Don Juan Casiano, as regidor or councilman and resident of the town of San German. He was also alcalde (mayor) in the years 1685 and 1687. Most all records are lost for this time frame. The name again appears in the San German militia in the year 1700 with Alonzo Casiano. Most all records are lost for the time frame up to the mid 1700's. My family is documented from the now to the 1760's in San German and Sabana Grande, Puerto Rico. Unfortunately, there is no proven or disproven connection to Don Juan Casiano.

There is some indication through research and word of mouth passed down from generation to generation that the Casiano's came from Barcelona or Majorca, Spain and Milan, Italy.

If anyone is interested in sharing information, stories or in just discussing the Casiano surname, contact me at casiano@juno.com