Kateryna (Катерина) is the Ukrainian form of Catherine — from the Greek katharos, meaning "pure." One of the most beloved names in Ukrainian culture, immortalized in Taras Shevchenko's 1838 poem Kateryna.
Kateryna is widely used in Ukraine.
Kateryna does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Kateryna reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.