Tarni is an Indigenous Australian name from the Kaurna language of the Adelaide Plains people, meaning "salt water" or "ocean."
Tarni is rising in modern Australia.
Tarni 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.
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In Pythagorean numerology the letters of Tarni reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.