Unknown; possibly related to the Roman clan name Tatius
Tatiyanna is a modern American phonetic elaboration of Tatiana. The name Tatiana is derived from the Roman family name Tatius, which is of obscure Sabinian origin. It became widely popular in the Eastern Orthodox world due to Saint Tatiana, a 3rd-century martyr.
Less common today
Tatiyanna isn't in the latest US Top 1000. It last peaked at #3,565 in 1999.
US births per 5-year period, 1990–present (SSA data).
