Harlow comes from an Old English surname meaning "army hill" — from here (army) and hlāw (hill, mound) — or "rock hill," depending on the locality. Several English villages bear the name.
top 1000 in 2009 and is climbing. Today it sits in the U.S. top 270.
Harlow 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 Harlow reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.