Adanna is an Igbo (Nigerian) name composed of ada (daughter, firstborn daughter) and nna (father) — meaning "father's daughter" or "his father's beloved daughter." Traditionally given to express a special bond between father and child.
Adanna is widely used in Nigeria and the Igbo diaspora. In the U.S. it remains in African-American and Igbo families.
Adanna 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.
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In Pythagorean numerology the letters of Adanna reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.