Unknown; possibly related to a Roman family name.
Tatjana is a Slavic and Germanic variation of Tatiana. It is derived from the Roman clan name Tatius, which is of obscure origin but was famously borne by Titus Tatius, a king of the Sabines. The name became widely popular in Eastern Europe due to the veneration of Saint Tatiana, a 3rd-century martyr.
Less common today
Tatjana isn't in the latest US Top 1000. It last peaked at #4,417 in 1991.
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US births per 5-year period, 1990–present (SSA data).
