Luana is from the Hawaiian luana (happy, content, enjoying) — also widely used in Brazilian Portuguese as a feminine name. Luana Andrade — Brazilian model. The name Luana appears in the 1932 Hawaiian-themed Hollywood film Bird of Paradise (Dolores del Río) and gained global popularity through Brazilian telenovelas across Latin America, Portugal, and the Lusophone diaspora.
Luana 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 Luana reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.