Casto is a distinctive and uncommon given name, of Spanish origin. It means 'pure' or 'chaste', derived from the Latin word 'castus'. This name has been sparsely used throughout history, contributing to its unique charm. Casto was most prevalent during the Middle Ages in Spain, often found among nobility due to its association with purity and virtue.
"The name Casto experienced a dip in popularity between the years 1915 to 1978, with notable spikes in usage during those four specific years."