Lejla is the Bosnian and Croatian form of the Arabic Layla — meaning "night" or "dark beauty." Used widely in Bosnia and Herzegovina, where the Muslim majority preserved the Arabic root through Ottoman heritage.
Lejla is widely used in the Western Balkans.
Lejla 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 Lejla reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.