Euroka is from the Aboriginal Australian (likely Dharug/Eora) Euroka — sun, sunrise. Euroka is one of the Aboriginal Australian feminine names — central to traditional Aboriginal Indigenous Sydney basin heritage. Aboriginal feminine name reflecting Indigenous Australian heritage.
Euroka 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 Euroka reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.