Sunna is the Old English and Old Norse name for the sun — and the personification of the sun goddess in Germanic pre-Christian religion. The same root gives modern English "sun."
Sunna is rare but rising as parents revive Anglo-Saxon names.
Sunna 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 Sunna reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.