Tatiana's Day is celebrated in Moldova on January 25. The tradition of celebrating this date has lasted for more than two centuries, going back to 1755, when Empress Elisabeth signed the decree establishing the Moscow State University (currently Lomonosov University). It was there that the holiday was initially marked. Later, the church of the Holy Martyr Tatiana was built on the precincts of the University, and the Russian Orthodox Church declared St. Tatiana "the protector of students". She later became the protector of all students and teachers.

According to data from the Public Services Agency, 96,834 women bear the name Tatiana in the Republic of Moldova, another 19 – Tania and 27 – Tanea, IPN reports.

The name Tatiana, often spelled Tatjana, Tatianna, or Tatyana, depending on the country, is of Slavic origin, derived from the Roman name Tatianus, specifically from the Roman clan Tatius. Tatiana is a fairly common name among the Slavs.

In numerology, the digit of the name Tatiana is three. Numerologists say that the bearers of this name are demanding people, with good intuition, who are willing to make sacrifices for the sake of those close to them.