Justino is a given name of Latin origin, derived from the Roman family name Junius. It means "youthful" or "juvenile," and is often associated with youthfulness and vitality. Justino is composed of the Latin elements 'justus,' meaning 'just' or 'fair,' and '-inus,' a suffix that denotes belonging to a particular group. The name gained prominence during the Middle Ages in Europe, particularly in Spain and Portugal, where it was used as both a given name and a surname. It is also found in other countries with significant Roman Catholic populations due to its association with Saint Justus of Lyon, who was martyred in the 3rd century AD. Today, Justino remains popular as a male given name in many parts of the world, particularly in Hispanic communities.
The name Justino experienced fluctuations in popularity over the years, with a total of 1134 births recorded between 1920 and 2023. The most popular years were 1976 with 21 births and 1990 & 2001 with 30 births each. Conversely, there were several years with only a single-digit number of births, including some years with just 5 or fewer births.