Marlowe comes from an English surname meaning "driftwood" or "remains of a lake" (from the Old English mere, meaning lake, and lāf, remnant). It was most famously borne by the playwright Christopher Marlowe (1564-1593), Shakespeare's contemporary.
Marlowe entered the U.S. Today it sits in the U.S. top 400.
Marlowe 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.
In Pythagorean numerology the letters of Marlowe reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.