London is from the Latin Londinium — the Roman name for the city founded c. As a given name, London emerged in the early 2000s alongside Paris, Brooklyn, and other city-name choices; appears for boys and girls (slightly more common for girls in US naming statistics). London Goheen — Australian model. The city has 9 million residents and 19+ million annual tourists, making it among the most-visited capitals globally. Lily Allen's "LDN" (2006). Adele's Hometown Glory is about her South London roots.
London 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 London reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.