Frida comes from the Old Germanic fríðr, meaning "peace," "beauty," or "beloved." It is the short form of names like Frederica, Sigfrida, and Astrid. In Scandinavia and Germany, Frida has been used continuously for over a thousand years.
Her father was a German immigrant, and she was named Friederich Kahlo's daughter Frida. The name is rising in the West in the wake of renewed interest in her life and work.
Frida 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 Frida reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.