Basilio is a name of Spanish origin, derived from the Latin word 'basilius', which means 'king'. It was popularized during the Middle Ages through the spread of Christianity, as Saint Basil the Great, a prominent theologian and bishop, was widely venerated in Spain. The name Basilio has been traditionally used in Spain and other Spanish-speaking countries for centuries. It is considered to be strong and distinctive, reflecting its royal origins.
The name Basilio experienced significant popularity fluctuations over the years, with a notable peak during the late 1940s to mid-1950s, reaching its highest point at 26 births in 1955. However, since the late 1970s, the name's usage has steadily declined, with fewer than 20 births recorded annually from 1983 onwards. The most recent data shows a total of 1784 births for the name Basilio up to 2023.