Tatiana Definition
pronoun
A transliteration of the Russian female given name Татьяна (Tatʹjana).
Wiktionary
A female given name.
Wiktionary
Origin of Tatiana
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Popular saints' name in the Eastern Orthodox Church, feminine of Latin Tatianus, derivative of Tatius, a Roman family name of obscure origin. Modern English usage is derived from the Russian form Татьяна (Tatʹjana).
From Wiktionary