Wanda is a Polish legendary queen — the daughter of Krakus, the legendary founder of Kraków.
Wanda was popular in 20th-century America (peaked at #143 in 1934) but has declined. The Marvel character Wanda Maximoff (Scarlet Witch) has revived interest.
Wanda 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 Wanda reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.