A Latin diminutive of Lucia, from 'lux' meaning 'light', borne by women of the Roman gens Lucilia.
Lucilia is a Latin feminine name of classical antiquity, a diminutive of the celebrated name Lucia, itself derived from *lux* (light). The *Lucilii* were a recognized Roman gens, or clan, and the name circulated in the educated aristocratic circles of the late Republic and early Empire. Most famously, Lucilius was the name of the second-century BCE poet Gaius Lucilius, credited by later Romans — including Horace and Quintilian — as the inventor of literary satire in Latin.
His female counterpart Lucilia occupied quieter corners of the historical record, a name for women of learning and social standing. Lucilia also appears in natural history with a curious immortality: the genus *Lucilia*, comprising the metallic blowflies, was named by entomologists in the nineteenth century who followed the Linnaean tradition of bestowing classical names on newly described genera. The bottle-green iridescence of *Lucilia sericata* was apparently deemed worthy of a Roman name's dignity — an odd honor, perhaps, but one that ensures the word Lucilia appears in scientific literature to this day.
More gracefully, the name surfaces in European literary and musical traditions as a variant of Lucia, appearing in Italian opera libretti and Spanish verse. In contemporary naming, Lucilia occupies the same appealing territory as Cecilia, Emilia, and Cornelia — names with unambiguous Roman ancestry that feel both scholarly and melodic. It is rarer than Lucia or Luciana, which gives it a quietly distinguished air. Parents drawn to classical antiquity, Romance languages, or simply names that carry centuries of cultural weight in an elegant four-syllable package find in Lucilia something that fashionable names manufactured last decade simply cannot offer.