Maayan (מַעְיָן) is the Hebrew word for "spring" or "fountain" — particularly a natural spring of fresh water. The Maayan ha-Hayyim ("spring of life") is a recurring image in Hebrew poetry.
Maayan is widely used in modern Israel for both boys and girls. In the U.S. it remains in the Jewish diaspora.
Maayan 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 Maayan reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.