Odelya is from the Hebrew אוֹדֵלְיָה (Odelyāh — I will praise the Lord) — from Hebrew odeh (I will praise) + Yah (God). Odelya is one of the Hebrew feminine names — central to traditional Jewish heritage. Hebrew feminine name reflecting Jewish theophoric heritage.
Odelya 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 Odelya reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.