Dafna (דַּפְנָה) is the Hebrew form of Daphne — from the Greek for "laurel." The laurel was sacred to Apollo. Used widely in modern Israel.
Dafna is widely used in Israel.
Dafna 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 Dafna reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.