Possibly from Germanic 'betlinde' (bright serpent) or Italian 'bella/linda' (beautiful).
Belinda is a graceful name with a slightly mysterious pedigree. Its exact origin has been debated for centuries: some have linked it to Germanic elements, others to the influence of Italian bella, "beautiful," and still others have treated it as a literary coinage that simply sounded noble and musical. What matters historically is that by the early modern period it had entered the imaginative vocabulary of Europe as a name of elegance.
It feels old, but not ancient; aristocratic, but not severe. Its great cultural turning point came in English literature with Alexander Pope's The Rape of the Lock, where Belinda is the glamorous heroine of the mock-epic. That poem fixed the name in the English-speaking imagination as a byword for beauty, fashion, wit, and decorative high society.
Later centuries softened it. By the nineteenth and twentieth centuries Belinda traveled widely through Britain, Latin America, and the wider Anglophone world, sometimes sounding romantic and refined, sometimes warmly familiar. It also continued to appear in songs, novels, and stage works, which helped preserve its feminine sheen.
The name's evolution is almost theatrical: it entered literature as an ornament of polish, then settled into ordinary life without losing that aura. Even now, Belinda carries a little satin rustle from the eighteenth century.