Simona is from the Romanian / Italian Simona — feminine of Simon (Hebrew Shim'on, hearing). Olympic representative (Rio 2016 + Tokyo 2020).
Simona 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 Simona reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.