Dayana is the Spanish and Latin American form of Diana — from the Latin divus ("divine") — the Roman goddess of the hunt, Moon, and chastity. 21 (2020); Australian Open semifinalist (2024). Dayana Garroz — Venezuelan TV personality. Dayana Sabatini — Argentine model. The spelling Dayana is particularly common in Venezuela, Cuba, Dominican Republic, and across the Spanish-speaking Caribbean, alongside the more-traditional Diana.
Dayana 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 Dayana reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.