Diminutive of Nola or Magnolia; possibly linked to Latin 'olivia' or Irish place name Nola.
Nollie is a diminutive with a long and somewhat forgotten pedigree, most plausibly derived from Oliver through the medieval English nickname Noll. Oliver itself comes from the Latin Oliverius, which grafted onto the Old Norse Áleifr — meaning ancestor's descendant — through Norman influence after 1066. The contracted form Noll was widely used in England during the Middle Ages and into the early modern period; Oliver Cromwell, the seventeenth-century Lord Protector of England, was famously known to contemporaries as Old Noll, evidence of how deeply embedded that diminutive once was.
Nollie as a stand-alone given name, rather than a household nickname, appears primarily in American records from the mid-nineteenth century onward, concentrated in rural Southern and Appalachian communities where creative diminutive names — Nellie, Dollie, Mollie, Nollie — formed an entire naming register of their own. These names carried a quality of tenderness and informality, suggesting that the bearer was known intimately and well-loved. Nollie also has a plausible feminine reading as a diminutive of Magnolia or even Cornelia, two names with strong nineteenth-century American standing.
In literary culture, Nollie gained a small but devoted audience through Aleksandr Solzhenitsyn's novel In the First Circle, where a character named Innokenty is nicknamed Nollie, suggesting the diminutive's reach extended into Russian naming practice as well. Today Nollie occupies a charming niche: short enough to be punchy, old enough to feel authentic, and rare enough to turn heads. The current revival of -ie and -y endings on given names positions Nollie perfectly for rediscovery.