Vita comes from the Latin vita, meaning "life." Used as a given name since the medieval period, particularly in Italy and Scandinavia.
Vita Sackville-West (1892-1962), the English writer and lover of Virginia Woolf (who based Orlando on her), is the most famous bearer. Today Vita is rising slowly as part of the broader vintage Latin revival.
Vita 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 Vita reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.