Salma (سلمى) comes from the Arabic root s-l-m — the same root that gives salaam (peace) and Islam (submission, peace). Salma means "safe," "peaceful," or "the one who brings peace."
Salma is one of the most common girl names in the Arab world. Today it sits in the U.S.
Salma 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 Salma reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.