Yusra (يسرى) is the Arabic word for "ease" or "prosperity" — appearing in the Quran (Surah Al-Layl 92:7) with the promise that God "will ease his way to ease."
Yusra Mardini (born 1998) is the Syrian-German Olympic swimmer who, fleeing Syria, swam her sinking boat to safety carrying refugees on the way to Lesbos.
Yusra 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 Yusra reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.