Beatrix is the original Latin form of Beatrice — from beatus, meaning "blessed" or "happy." Beatrix Potter (1866-1943) is the most famous English bearer; three queens of the Netherlands have also borne the name.
Beatrix is rising rapidly in the U.S. Today Beatrix sits in the U.S. top 600 and is climbing fast.
Beatrix 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 Beatrix reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.