Casiano is of Latin origin and means "pure". It is derived from the Latin word 'casianus', which refers to someone who is chaste or innocent. This name was popular among early Christians, likely due to its religious connotations. In Spanish-speaking countries, Casiano is often used as a given name, while in English-speaking regions it may be more commonly found as a surname. Notable individuals with the name Casiano include several saints and historical figures, reflecting its long-standing usage throughout history.
The name Casiano experienced three peaks in popularity over the past few decades, with five babies named Casiano born each in 1954, 1978, and 1996. In total, there were fifteen individuals named Casiano during these years.