Tallinn is a place-name used as a given name, tied to the Estonian capital and likely meaning something like "Danish town" in older usage.
Tallinn is, first and foremost, a city — the medieval Baltic capital of Estonia, its old town a UNESCO World Heritage site of limestone towers and cobblestone streets rising above the Gulf of Finland. The name almost certainly derives from the Estonian *Taani-linn*, meaning 'Danish castle' or 'Danish town,' a reference to the 13th-century Danish crusaders who built a fortress on the limestone bluff now called Toompea Hill. Some scholars propose the older form *Lindanisa*, meaning 'linden-nut headland' in a proto-Estonian tongue, suggesting the site was settled and named long before Danish sails appeared on the horizon.
As a given name, Tallinn belongs to a growing tradition of bestowing place names on children to commemorate meaningful travel, ancestral connection, or simply a love of a city's spirit. Parents who honeymooned on the cobblestones, or who trace Baltic ancestry, or who simply fell in love with a photograph of its fairy-tale skyline, have turned to Tallinn as an unusual but lyrical choice. It sits comfortably in the company of other capital-city names — Florence, Adelaide, Vienna — that have made the leap from geography to identity.
The name carries a distinctly Nordic-Baltic aesthetic: cool consonants, an open vowel spine, and a cadence that sounds both ancient and spare. It works in either gender but leans slightly feminine in contemporary naming sensibility. For a child named Tallinn, it is a built-in conversation piece — an invitation to explain, to explore, and eventually to visit the city that gave them their name.