Sumedha is from the Sanskrit सुमेधा (Sumedhā — good intellect, wise) — from Sanskrit su (good) + medhā (intellect). Sumedha is one of the Sanskrit feminine names — central to traditional Hindu + Buddhist heritage. Notable bearer: Sumedha Pal Indian writer.
Sumedha 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 Sumedha reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.