Concetta comes from the Italian concezione, meaning "conception" — referring to the Immaculate Conception of Mary. Used widely in southern Italy.
Concetta is the Italian form of the Spanish Concepción.
Concetta 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 Concetta reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.