Hauwa is the Hausa form of Hawwa — Arabic for Eve, the first woman. The name shares roots with the Hebrew Chava.
Hauwa is widely used in northern Nigeria, Niger, and Hausa communities. Hauwa Ibrahim (born 1968) is the Nigerian human rights lawyer.
Hauwa 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 Hauwa reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.