Milena is the feminine of Milan — from the Slavic mil, meaning "gracious," "dear," or "beloved." Used across Czech, Slovak, Bulgarian, Serbian, and Croatian.
Milena entered the U.S. top 1000 in 2014 and has been rising.
Milena 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 Milena reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.